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mgeeky 2021-11-04 15:32:56 +01:00
parent bd7da34034
commit b7def6540b
1 changed files with 89 additions and 65 deletions
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154
decode-spam-headers.py
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@ -428,6 +428,9 @@ class SMTPHeadersAnalysis:
('Cisco IronPort / Email Security Appliance (ESA)' , 'X-Policy'), ('Cisco IronPort / Email Security Appliance (ESA)' , 'X-Policy'),
('Cisco IronPort / Email Security Appliance (ESA)' , 'X-SBRS'), ('Cisco IronPort / Email Security Appliance (ESA)' , 'X-SBRS'),
('Cisco IronPort' , 'X-IronPort-'), ('Cisco IronPort' , 'X-IronPort-'),
('Office365' , 'X-.+Tenant.+'),
('Office365' , 'X-MS-Exchange-Organization'),
('Office365' , 'X-MS-Exchange-CrossTenant-Id'),
('Exchange Online Protection' , 'X-EOP'), ('Exchange Online Protection' , 'X-EOP'),
('Exchange Online Protection' , 'X-MS-Exchange-'), ('Exchange Online Protection' , 'X-MS-Exchange-'),
('Exchange Online Protection - First Contact Safety' , 'X-.+-EnableFirstContactSafetyTip'), ('Exchange Online Protection - First Contact Safety' , 'X-.+-EnableFirstContactSafetyTip'),
@ -458,6 +461,11 @@ class SMTPHeadersAnalysis:
('Trend Micro InterScan Messaging Security' , 'X-IMSS-'), ('Trend Micro InterScan Messaging Security' , 'X-IMSS-'),
) )
Security_Appliances_And_Their_Values = \
(
('Exchange Online Protection' , '.protection.outlook.com'),
)
Headers_Known_For_Breaking_Line = ( Headers_Known_For_Breaking_Line = (
'Received', 'Received',
'Authentication-Results', 'Authentication-Results',
@ -1489,6 +1497,8 @@ class SMTPHeadersAnalysis:
Verstring('Exchange Server 2019 CU3', 'March 2, 2021', '15.2.464.15'), Verstring('Exchange Server 2019 CU3', 'March 2, 2021', '15.2.464.15'),
) )
Manually_Added_Appliances = set()
def __init__(self, logger, resolve = False, decode_all = False, testsToRun = []): def __init__(self, logger, resolve = False, decode_all = False, testsToRun = []):
self.text = '' self.text = ''
self.results = {} self.results = {}
@ -1503,6 +1513,10 @@ class SMTPHeadersAnalysis:
# (number, header, value) # (number, header, value)
self.headers = [] self.headers = []
def addSecurityAppliance(self, name):
SMTPHeadersAnalysis.Manually_Added_Appliances.add(name.lower())
self.securityAppliances.add(name)
def getAllTests(self): def getAllTests(self):
tests = ( tests = (
@ -2202,9 +2216,8 @@ Results will be unsound. Make sure you have pasted your headers with correct spa
if num == -1: return [] if num == -1: return []
value = value.strip() value = value.strip()
self.securityAppliances.add('MS Defender for Office365 - Safe Links') self.addSecurityAppliance('MS Defender for Office365 - Safe Links')
result = f'- Microsoft Defender for Office365 (MDO) Safe Links was used in key version: {self.logger.colored(value, "green")}\n' result = f'- Microsoft Defender for Office365 (MDO) Safe Links was used in key version: {self.logger.colored(value, "green")}\n'
return { return {
'header': header, 'header': header,
@ -2216,6 +2229,9 @@ Results will be unsound. Make sure you have pasted your headers with correct spa
def testSecurityAppliances(self): def testSecurityAppliances(self):
result = '' result = ''
vals = [x.lower() for x in SMTPHeadersAnalysis.Header_Keywords_That_May_Contain_Spam_Info] vals = [x.lower() for x in SMTPHeadersAnalysis.Header_Keywords_That_May_Contain_Spam_Info]
vals += [x[0].lower() for x in SMTPHeadersAnalysis.Security_Appliances_And_Their_Headers]
vals += [x[0].lower() for x in SMTPHeadersAnalysis.Security_Appliances_And_Their_Values]
vals += [x.lower() for x in SMTPHeadersAnalysis.Manually_Added_Appliances]
self.logger.dbg('Spotted clues about security appliances:') self.logger.dbg('Spotted clues about security appliances:')
@ -2224,6 +2240,10 @@ Results will be unsound. Make sure you have pasted your headers with correct spa
if re.search(re.escape(hdr), header, re.I): if re.search(re.escape(hdr), header, re.I):
self.securityAppliances.add(product) self.securityAppliances.add(product)
for product, val in SMTPHeadersAnalysis.Security_Appliances_And_Their_Values:
if re.search(re.escape(val), value, re.I):
self.securityAppliances.add(product)
for a in self.securityAppliances: for a in self.securityAppliances:
parts = a.split(' ') parts = a.split(' ')
skip = True skip = True
@ -2235,7 +2255,9 @@ Results will be unsound. Make sure you have pasted your headers with correct spa
skip = False skip = False
break break
if skip: continue if skip:
continue
result += f'\t- {a}\n' result += f'\t- {a}\n'
if len(result) == 0: if len(result) == 0:
@ -2279,6 +2301,7 @@ Results will be unsound. Make sure you have pasted your headers with correct spa
value = SMTPHeadersAnalysis.flattenLine(value).strip().replace(' ', '') value = SMTPHeadersAnalysis.flattenLine(value).strip().replace(' ', '')
result = f'- Office365 Tenant ID: {self.logger.colored(value, "cyan")}\n' result = f'- Office365 Tenant ID: {self.logger.colored(value, "cyan")}\n'
self.addSecurityAppliance('Office365')
try: try:
r = requests.get(f'https://login.microsoftonline.com/{value}/.well-known/openid-configuration') r = requests.get(f'https://login.microsoftonline.com/{value}/.well-known/openid-configuration')
@ -2410,6 +2433,7 @@ Results will be unsound. Make sure you have pasted your headers with correct spa
value = SMTPHeadersAnalysis.flattenLine(value).strip() value = SMTPHeadersAnalysis.flattenLine(value).strip()
result = f'- Organization name disclosed: {self.logger.colored(value, "green")}\n' result = f'- Organization name disclosed: {self.logger.colored(value, "green")}\n'
self.addSecurityAppliance('Office365')
try: try:
r = requests.get(f'https://login.microsoftonline.com/{value}/.well-known/openid-configuration') r = requests.get(f'https://login.microsoftonline.com/{value}/.well-known/openid-configuration')
@ -2458,7 +2482,7 @@ Results will be unsound. Make sure you have pasted your headers with correct spa
if num == -1: return [] if num == -1: return []
result = '- Proofpoint Email Protection Spam details report\n' result = '- Proofpoint Email Protection Spam details report\n'
self.securityAppliances.add('Proofpoint Email Protection') self.addSecurityAppliance('Proofpoint Email Protection')
return self._parseProofpoint(result, '', num, header, value) return self._parseProofpoint(result, '', num, header, value)
def _parseProofpoint(self, topic, description, num, header, value): def _parseProofpoint(self, topic, description, num, header, value):
@ -2512,7 +2536,7 @@ Results will be unsound. Make sure you have pasted your headers with correct spa
if num == -1: return [] if num == -1: return []
result = '- Proofpoint Email Protection Anti-Virus version\n' result = '- Proofpoint Email Protection Anti-Virus version\n'
self.securityAppliances.add('Proofpoint Email Protection') self.addSecurityAppliance('Proofpoint Email Protection')
return self._parseProofpoint(result, '', num, header, value) return self._parseProofpoint(result, '', num, header, value)
def testXSpamExpertsClass(self): def testXSpamExpertsClass(self):
@ -2524,7 +2548,7 @@ Results will be unsound. Make sure you have pasted your headers with correct spa
if value.lower() in SMTPHeadersAnalysis.SpamExperts_Classes.keys(): if value.lower() in SMTPHeadersAnalysis.SpamExperts_Classes.keys():
result += f'\n\t- {value}: ' + SMTPHeadersAnalysis.SpamExperts_Classes[value.lower()] + '\n' result += f'\n\t- {value}: ' + SMTPHeadersAnalysis.SpamExperts_Classes[value.lower()] + '\n'
self.securityAppliances.add('n-able Mail Assure (SpamExperts)') self.addSecurityAppliance('n-able Mail Assure (SpamExperts)')
return { return {
'header': header, 'header': header,
@ -2564,7 +2588,7 @@ Results will be unsound. Make sure you have pasted your headers with correct spa
except: except:
pass pass
self.securityAppliances.add('n-able Mail Assure (SpamExperts)') self.addSecurityAppliance('n-able Mail Assure (SpamExperts)')
return { return {
'header': header, 'header': header,
@ -2582,7 +2606,7 @@ Results will be unsound. Make sure you have pasted your headers with correct spa
if value.lower() in SMTPHeadersAnalysis.SpamExperts_Actions.keys(): if value.lower() in SMTPHeadersAnalysis.SpamExperts_Actions.keys():
result += f'\n\t- {value}: ' + SMTPHeadersAnalysis.SpamExperts_Actions[value.lower()] + '\n' result += f'\n\t- {value}: ' + SMTPHeadersAnalysis.SpamExperts_Actions[value.lower()] + '\n'
self.securityAppliances.add('n-able Mail Assure (SpamExperts)') self.addSecurityAppliance('n-able Mail Assure (SpamExperts)')
return { return {
'header': header, 'header': header,
@ -2596,7 +2620,7 @@ Results will be unsound. Make sure you have pasted your headers with correct spa
if num == -1: return [] if num == -1: return []
result = '- Trend Micro Anti-Spam Engine (TMASE) Version\n' result = '- Trend Micro Anti-Spam Engine (TMASE) Version\n'
self.securityAppliances.add('Trend Micro Anti-Spam') self.addSecurityAppliance('Trend Micro Anti-Spam')
parts = value.split('-') parts = value.split('-')
if len(parts) > 0: result += f'\t\t- Vendor Product Name: {parts[0]}\n' if len(parts) > 0: result += f'\t\t- Vendor Product Name: {parts[0]}\n'
@ -2629,7 +2653,7 @@ Results will be unsound. Make sure you have pasted your headers with correct spa
if num == -1: return [] if num == -1: return []
result = '- Barracuda Email Security Spam Score\n' result = '- Barracuda Email Security Spam Score\n'
self.securityAppliances.add('Barracuda Email Security') self.addSecurityAppliance('Barracuda Email Security')
thresholds = SMTPHeadersAnalysis.Barracuda_Score_Thresholds thresholds = SMTPHeadersAnalysis.Barracuda_Score_Thresholds
aggressive = False aggressive = False
@ -2655,7 +2679,7 @@ Results will be unsound. Make sure you have pasted your headers with correct spa
if num == -1: return [] if num == -1: return []
result = '- Barracuda Email Security Spam Status (based on SpamAssassin)\n\n' result = '- Barracuda Email Security Spam Status (based on SpamAssassin)\n\n'
self.securityAppliances.add('Barracuda Email Security') self.addSecurityAppliance('Barracuda Email Security')
thresholds = SMTPHeadersAnalysis.Barracuda_Score_Thresholds thresholds = SMTPHeadersAnalysis.Barracuda_Score_Thresholds
aggressive = False aggressive = False
@ -2739,7 +2763,7 @@ Results will be unsound. Make sure you have pasted your headers with correct spa
if num == -1: return [] if num == -1: return []
result = f'- Barracuda Email Security Spam Report:\n\t- {value.strip()}\n' result = f'- Barracuda Email Security Spam Report:\n\t- {value.strip()}\n'
self.securityAppliances.add('Barracuda Email Security') self.addSecurityAppliance('Barracuda Email Security')
return { return {
'header': header, 'header': header,
@ -2753,7 +2777,7 @@ Results will be unsound. Make sure you have pasted your headers with correct spa
if num == -1: return [] if num == -1: return []
result = f'- Barracuda Email Security Spam Bayesian analysis:\n\t- {value.strip()}\n' result = f'- Barracuda Email Security Spam Bayesian analysis:\n\t- {value.strip()}\n'
self.securityAppliances.add('Barracuda Email Security') self.addSecurityAppliance('Barracuda Email Security')
return { return {
'header': header, 'header': header,
@ -2770,7 +2794,7 @@ Results will be unsound. Make sure you have pasted your headers with correct spa
val = datetime.utcfromtimestamp(ts).strftime('%Y-%m-%d %H:%M:%S') val = datetime.utcfromtimestamp(ts).strftime('%Y-%m-%d %H:%M:%S')
result = f'- Barracuda Email Security Start Time: {self.logger.colored(val, "green")} ({ts})\n' result = f'- Barracuda Email Security Start Time: {self.logger.colored(val, "green")} ({ts})\n'
self.securityAppliances.add('Barracuda Email Security') self.addSecurityAppliance('Barracuda Email Security')
return { return {
'header': header, 'header': header,
@ -2784,7 +2808,7 @@ Results will be unsound. Make sure you have pasted your headers with correct spa
if num == -1: return [] if num == -1: return []
result = '- Trend Micro Anti-Spam Engine (TMASE) Version\n' result = '- Trend Micro Anti-Spam Engine (TMASE) Version\n'
self.securityAppliances.add('Trend Micro Anti-Spam') self.addSecurityAppliance('Trend Micro Anti-Spam')
parts = value.split('-') parts = value.split('-')
if len(parts) > 0: result += f'\t\t- Vendor Product Name: {parts[0]}\n' if len(parts) > 0: result += f'\t\t- Vendor Product Name: {parts[0]}\n'
@ -2816,7 +2840,7 @@ Results will be unsound. Make sure you have pasted your headers with correct spa
if num == -1: return [] if num == -1: return []
result = '- Trend Micro Anti-Spam\n' result = '- Trend Micro Anti-Spam\n'
self.securityAppliances.add('Trend Micro Anti-Spam') self.addSecurityAppliance('Trend Micro Anti-Spam')
if value.strip().lower() == 'yes': if value.strip().lower() == 'yes':
result += self.logger.colored('\t- system Approved this Sender\n', 'green') result += self.logger.colored('\t- system Approved this Sender\n', 'green')
@ -2836,7 +2860,7 @@ Results will be unsound. Make sure you have pasted your headers with correct spa
if num == -1: return [] if num == -1: return []
result = '- Mimecast mail impersonation report:\n\n' result = '- Mimecast mail impersonation report:\n\n'
self.securityAppliances.add('Mimecast') self.addSecurityAppliance('Mimecast')
value = SMTPHeadersAnalysis.flattenLine(value) value = SMTPHeadersAnalysis.flattenLine(value)
@ -2872,7 +2896,7 @@ Results will be unsound. Make sure you have pasted your headers with correct spa
if num == -1: return [] if num == -1: return []
result = '- Trend Micro Anti-Spam\n' result = '- Trend Micro Anti-Spam\n'
self.securityAppliances.add('Trend Micro Anti-Spam') self.addSecurityAppliance('Trend Micro Anti-Spam')
if value.strip().lower() == 'yes': if value.strip().lower() == 'yes':
result += self.logger.colored('\t- system Blocked this Sender\n', 'red') result += self.logger.colored('\t- system Blocked this Sender\n', 'red')
@ -2905,7 +2929,7 @@ Results will be unsound. Make sure you have pasted your headers with correct spa
result = f'- Trend Micro Anti-Spam triggered following rules on this e-mail:\n\n' result = f'- Trend Micro Anti-Spam triggered following rules on this e-mail:\n\n'
result += f'{value}\n' result += f'{value}\n'
self.securityAppliances.add('Trend Micro Anti-Spam') self.addSecurityAppliance('Trend Micro Anti-Spam')
return { return {
'header': header, 'header': header,
@ -2919,7 +2943,7 @@ Results will be unsound. Make sure you have pasted your headers with correct spa
if num == -1: return [] if num == -1: return []
result = '- Trend Micro Anti Spam Engine (TMASE) Social Engineering Attack Protection (SNAP) scan result\n\n' result = '- Trend Micro Anti Spam Engine (TMASE) Social Engineering Attack Protection (SNAP) scan result\n\n'
self.securityAppliances.add('Trend Micro Anti-Spam') self.addSecurityAppliance('Trend Micro Anti-Spam')
parts = value.strip().split('-') parts = value.strip().split('-')
@ -2962,7 +2986,7 @@ Results will be unsound. Make sure you have pasted your headers with correct spa
(num, header, value) = self.getHeader('X-IMSS-DKIM-White-List') (num, header, value) = self.getHeader('X-IMSS-DKIM-White-List')
if num == -1: return [] if num == -1: return []
self.securityAppliances.add('Trend Micro InterScan Messaging Security') self.addSecurityAppliance('Trend Micro InterScan Messaging Security')
if value.strip().lower() == 'yes': if value.strip().lower() == 'yes':
result = '- Trend Micro InterScan Messaging Security DKIM White Listed this sender\n' result = '- Trend Micro InterScan Messaging Security DKIM White Listed this sender\n'
@ -2982,7 +3006,7 @@ Results will be unsound. Make sure you have pasted your headers with correct spa
if num == -1: return [] if num == -1: return []
result = '- Trend Micro Anti-Spam Result\n' result = '- Trend Micro Anti-Spam Result\n'
self.securityAppliances.add('Trend Micro Anti-Spam') self.addSecurityAppliance('Trend Micro Anti-Spam')
return self._parseTMASResult(result, '', num, header, value) return self._parseTMASResult(result, '', num, header, value)
def testXTMASEResult(self): def testXTMASEResult(self):
@ -2990,7 +3014,7 @@ Results will be unsound. Make sure you have pasted your headers with correct spa
if num == -1: return [] if num == -1: return []
result = '- Trend Micro Anti-Spam Engine (TMASE) Result\n' result = '- Trend Micro Anti-Spam Engine (TMASE) Result\n'
self.securityAppliances.add('Trend Micro Anti-Spam') self.addSecurityAppliance('Trend Micro Anti-Spam')
return self._parseTMASResult(result, '', num, header, value) return self._parseTMASResult(result, '', num, header, value)
def testXTMScanDetails(self): def testXTMScanDetails(self):
@ -2998,7 +3022,7 @@ Results will be unsound. Make sure you have pasted your headers with correct spa
if num == -1: return [] if num == -1: return []
result = '- Trend Micro InterScan Messaging Security Scan Details\n' result = '- Trend Micro InterScan Messaging Security Scan Details\n'
self.securityAppliances.add('Trend Micro InterScan Messaging Security') self.addSecurityAppliance('Trend Micro InterScan Messaging Security')
return self._parseTMASResult(result, '', num, header, value) return self._parseTMASResult(result, '', num, header, value)
def _parseTMASResult(self, topicLine, description, num, header, value): def _parseTMASResult(self, topicLine, description, num, header, value):
@ -3107,7 +3131,7 @@ Results will be unsound. Make sure you have pasted your headers with correct spa
if num == -1: return [] if num == -1: return []
result = '- Trend Micro Anti-Spam Engine (TMASE) SNAP Result\n' result = '- Trend Micro Anti-Spam Engine (TMASE) SNAP Result\n'
self.securityAppliances.add('Trend Micro Anti-Spam') self.addSecurityAppliance('Trend Micro Anti-Spam')
result += f'\t- {value}\n' result += f'\t- {value}\n'
return { return {
@ -3122,7 +3146,7 @@ Results will be unsound. Make sure you have pasted your headers with correct spa
if num == -1: return [] if num == -1: return []
result = '- Trend Micro Anti-Spam XFilter\n' result = '- Trend Micro Anti-Spam XFilter\n'
self.securityAppliances.add('Trend Micro Anti-Spam') self.addSecurityAppliance('Trend Micro Anti-Spam')
result += f'\t- {value}\n' result += f'\t- {value}\n'
return { return {
@ -3153,7 +3177,7 @@ Results will be unsound. Make sure you have pasted your headers with correct spa
value = SMTPHeadersAnalysis.flattenLine(value) value = SMTPHeadersAnalysis.flattenLine(value)
result = '- Trend Micro Anti-Spam SMTP servers\n' result = '- Trend Micro Anti-Spam SMTP servers\n'
self.securityAppliances.add('Trend Micro Anti-Spam') self.addSecurityAppliance('Trend Micro Anti-Spam')
parts = value.split(' ') parts = value.split(' ')
if len(parts) > 2: if len(parts) > 2:
@ -3179,7 +3203,7 @@ Results will be unsound. Make sure you have pasted your headers with correct spa
if num == -1: return [] if num == -1: return []
result = f'- Message was scanned with an Anti-Virus.' result = f'- Message was scanned with an Anti-Virus.'
self.securityAppliances.add('Unknown Anti-Virus') self.addSecurityAppliance('Unknown Anti-Virus')
return { return {
'header' : header, 'header' : header,
@ -3193,7 +3217,7 @@ Results will be unsound. Make sure you have pasted your headers with correct spa
if num == -1: return [] if num == -1: return []
result = f'- Message was scanned with FireEye Email Security Solution. Result is following:\n' result = f'- Message was scanned with FireEye Email Security Solution. Result is following:\n'
self.securityAppliances.add('FireEye Email Security Solution') self.addSecurityAppliance('FireEye Email Security Solution')
result += f'\t- {self.logger.colored(value, "green")}\n' result += f'\t- {self.logger.colored(value, "green")}\n'
return { return {
@ -3276,7 +3300,7 @@ Results will be unsound. Make sure you have pasted your headers with correct spa
if num == -1: return [] if num == -1: return []
result = f'- Cisco IronPort observed following IP of the connecting Client: ' result = f'- Cisco IronPort observed following IP of the connecting Client: '
self.securityAppliances.add('Cisco IronPort') self.addSecurityAppliance('Cisco IronPort')
return self._originatingIPTest(result, '', num, header, value) return self._originatingIPTest(result, '', num, header, value)
def testXSESOutgoing(self): def testXSESOutgoing(self):
@ -3353,7 +3377,7 @@ Results will be unsound. Make sure you have pasted your headers with correct spa
if num == -1: return [] if num == -1: return []
result = f'- Sophos Email Appliance Spam report:\n' result = f'- Sophos Email Appliance Spam report:\n'
self.securityAppliances.add('Sophos Email Appliance (PureMessage)') self.addSecurityAppliance('Sophos Email Appliance (PureMessage)')
report = {} report = {}
value = SMTPHeadersAnalysis.flattenLine(value) value = SMTPHeadersAnalysis.flattenLine(value)
@ -3455,7 +3479,7 @@ Results will be unsound. Make sure you have pasted your headers with correct spa
if num == -1: return [] if num == -1: return []
result = f'- SpamDiagnosticMetadata: Antispam stamps in Exchange Server 2016.\n' result = f'- SpamDiagnosticMetadata: Antispam stamps in Exchange Server 2016.\n'
self.securityAppliances.add('Exchange Server 2016 Anti-Spam') self.addSecurityAppliance('Exchange Server 2016 Anti-Spam')
if value.strip() in SMTPHeadersAnalysis.Spam_Diagnostics_Metadata.keys(): if value.strip() in SMTPHeadersAnalysis.Spam_Diagnostics_Metadata.keys():
result += f' {value}: ' + SMTPHeadersAnalysis.Spam_Diagnostics_Metadata[value.strip()] + '\n' result += f' {value}: ' + SMTPHeadersAnalysis.Spam_Diagnostics_Metadata[value.strip()] + '\n'
@ -3473,7 +3497,7 @@ Results will be unsound. Make sure you have pasted your headers with correct spa
(num, header, value) = self.getHeader('IronPort-HdrOrdr') (num, header, value) = self.getHeader('IronPort-HdrOrdr')
if num == -1: return [] if num == -1: return []
self.securityAppliances.add('Cisco IronPort / Email Security Appliance (ESA)') self.addSecurityAppliance('Cisco IronPort / Email Security Appliance (ESA)')
if self.decode_all: if self.decode_all:
dumped = SMTPHeadersAnalysis.hexdump(SMTPHeadersAnalysis.safeBase64Decode(value)) dumped = SMTPHeadersAnalysis.hexdump(SMTPHeadersAnalysis.safeBase64Decode(value))
@ -3495,7 +3519,7 @@ Results will be unsound. Make sure you have pasted your headers with correct spa
(num, header, value) = self.getHeader('IronPort-Data') (num, header, value) = self.getHeader('IronPort-Data')
if num == -1: return [] if num == -1: return []
self.securityAppliances.add('Cisco IronPort / Email Security Appliance (ESA)') self.addSecurityAppliance('Cisco IronPort / Email Security Appliance (ESA)')
if self.decode_all: if self.decode_all:
dumped = SMTPHeadersAnalysis.hexdump(SMTPHeadersAnalysis.safeBase64Decode(value)) dumped = SMTPHeadersAnalysis.hexdump(SMTPHeadersAnalysis.safeBase64Decode(value))
@ -3517,14 +3541,14 @@ Results will be unsound. Make sure you have pasted your headers with correct spa
(num, header, value) = self.getHeader('X-IronPort-SenderGroup') (num, header, value) = self.getHeader('X-IronPort-SenderGroup')
if num == -1: return [] if num == -1: return []
self.securityAppliances.add('Cisco IronPort / Email Security Appliance (ESA)') self.addSecurityAppliance('Cisco IronPort / Email Security Appliance (ESA)')
return self._parseCiscoPolicy('\n- Cisco\'s Email Security Appliance (ESA) applied following Mail Flow policy to this e-mails SenderGroup:\n', '', num, header, value) return self._parseCiscoPolicy('\n- Cisco\'s Email Security Appliance (ESA) applied following Mail Flow policy to this e-mails SenderGroup:\n', '', num, header, value)
def testXIronPortMailFlowPolicy(self): def testXIronPortMailFlowPolicy(self):
(num, header, value) = self.getHeader('X-IronPort-MailFlowPolicy') (num, header, value) = self.getHeader('X-IronPort-MailFlowPolicy')
if num == -1: return [] if num == -1: return []
self.securityAppliances.add('Cisco IronPort / Email Security Appliance (ESA)') self.addSecurityAppliance('Cisco IronPort / Email Security Appliance (ESA)')
return self._parseCiscoPolicy( return self._parseCiscoPolicy(
'\n- Cisco\'s Email Security Appliance (ESA) applied following Mail Flow policy to this e-mail:\n', '\n- Cisco\'s Email Security Appliance (ESA) applied following Mail Flow policy to this e-mail:\n',
''' '''
@ -3540,7 +3564,7 @@ Src: https://www.cisco.com/c/en/us/support/docs/security/email-security-applianc
if num == -1: return [] if num == -1: return []
if value.strip().upper() in SMTPHeadersAnalysis.Cisco_Predefined_MailFlow_Policies.keys(): if value.strip().upper() in SMTPHeadersAnalysis.Cisco_Predefined_MailFlow_Policies.keys():
self.securityAppliances.add('Cisco IronPort / Email Security Appliance (ESA)') self.addSecurityAppliance('Cisco IronPort / Email Security Appliance (ESA)')
return self._parseCiscoPolicy('\n- Cisco\'s Email Security Appliance (ESA) applied following Mail Flow policy to this e-mail:\n', '', num, header, value) return self._parseCiscoPolicy('\n- Cisco\'s Email Security Appliance (ESA) applied following Mail Flow policy to this e-mail:\n', '', num, header, value)
else: else:
@ -3578,7 +3602,7 @@ Src: https://www.cisco.com/c/en/us/support/docs/security/email-security-applianc
(num, header, value) = self.getHeader('X-IronPort-Reputation') (num, header, value) = self.getHeader('X-IronPort-Reputation')
if num == -1: return [] if num == -1: return []
self.securityAppliances.add('Cisco IronPort / Email Security Appliance (ESA)') self.addSecurityAppliance('Cisco IronPort / Email Security Appliance (ESA)')
topicLine = f'\n\n- Cisco SenderBase Reputation Service result:\n' topicLine = f'\n\n- Cisco SenderBase Reputation Service result:\n'
return self._parseCiscoSBRS(topicLine, '', num, header, value) return self._parseCiscoSBRS(topicLine, '', num, header, value)
@ -3587,7 +3611,7 @@ Src: https://www.cisco.com/c/en/us/support/docs/security/email-security-applianc
if num == -1: return [] if num == -1: return []
topicLine = f'\n\n- Cisco SenderBase Reputation Service result (custom header set):\n' topicLine = f'\n\n- Cisco SenderBase Reputation Service result (custom header set):\n'
self.securityAppliances.add('Cisco IronPort / Email Security Appliance (ESA)') self.addSecurityAppliance('Cisco IronPort / Email Security Appliance (ESA)')
return self._parseCiscoSBRS(topicLine, '', num, header, value) return self._parseCiscoSBRS(topicLine, '', num, header, value)
@ -3633,7 +3657,7 @@ Src: https://www.cisco.com/c/en/us/td/docs/security/esa/esa11-1/user_guide/b_ESA
(num, header, value) = self.getHeader('X-IronPort-AV') (num, header, value) = self.getHeader('X-IronPort-AV')
if num == -1: return [] if num == -1: return []
self.securityAppliances.add('Cisco IronPort / Email Security Appliance (ESA)') self.addSecurityAppliance('Cisco IronPort / Email Security Appliance (ESA)')
result = f'- Cisco IronPort Anti-Virus interface.\n' result = f'- Cisco IronPort Anti-Virus interface.\n'
value = SMTPHeadersAnalysis.flattenLine(value) value = SMTPHeadersAnalysis.flattenLine(value)
@ -3732,7 +3756,7 @@ Src: https://www.cisco.com/c/en/us/td/docs/security/esa/esa11-1/user_guide/b_ESA
(num, header, value) = self.getHeader('X-IronPort-Anti-Spam-Filtered') (num, header, value) = self.getHeader('X-IronPort-Anti-Spam-Filtered')
if num == -1: return [] if num == -1: return []
self.securityAppliances.add('Cisco IronPort / Email Security Appliance (ESA)') self.addSecurityAppliance('Cisco IronPort / Email Security Appliance (ESA)')
if value.strip().strip() == 'true': if value.strip().strip() == 'true':
result = f'- Cisco IronPort Anti-Spam rules {self.logger.colored("marked this message SPAM", "red")}.' result = f'- Cisco IronPort Anti-Spam rules {self.logger.colored("marked this message SPAM", "red")}.'
else: else:
@ -3751,7 +3775,7 @@ Src: https://www.cisco.com/c/en/us/td/docs/security/esa/esa11-1/user_guide/b_ESA
(num, header, value) = self.getHeader('X-IronPort-Anti-Spam-Result') (num, header, value) = self.getHeader('X-IronPort-Anti-Spam-Result')
if num == -1: return [] if num == -1: return []
self.securityAppliances.add('Cisco IronPort / Email Security Appliance (ESA)') self.addSecurityAppliance('Cisco IronPort / Email Security Appliance (ESA)')
if self.decode_all: if self.decode_all:
dumped = SMTPHeadersAnalysis.hexdump(SMTPHeadersAnalysis.safeBase64Decode(value)) dumped = SMTPHeadersAnalysis.hexdump(SMTPHeadersAnalysis.safeBase64Decode(value))
@ -3772,7 +3796,7 @@ Src: https://www.cisco.com/c/en/us/td/docs/security/esa/esa11-1/user_guide/b_ESA
(num, header, value) = self.getHeader('X-Spam-Checker-Version') (num, header, value) = self.getHeader('X-Spam-Checker-Version')
if num == -1: return [] if num == -1: return []
self.securityAppliances.add('SpamAssassin') self.addSecurityAppliance('SpamAssassin')
result = f'- SpamAssassin version.' result = f'- SpamAssassin version.'
return { return {
@ -3787,7 +3811,7 @@ Src: https://www.cisco.com/c/en/us/td/docs/security/esa/esa11-1/user_guide/b_ESA
if num == -1: return [] if num == -1: return []
result = f'- OVH considered this message as SPAM and attached following Spam ' result = f'- OVH considered this message as SPAM and attached following Spam '
self.securityAppliances.add('OVH Anti-Spam') self.addSecurityAppliance('OVH Anti-Spam')
value = SMTPHeadersAnalysis.flattenLine(value).replace(' ', '').replace('\t', '') value = SMTPHeadersAnalysis.flattenLine(value).replace(' ', '').replace('\t', '')
result += f'Score: {self.logger.colored(value.strip(), "red")}\n' result += f'Score: {self.logger.colored(value.strip(), "red")}\n'
@ -3802,7 +3826,7 @@ Src: https://www.cisco.com/c/en/us/td/docs/security/esa/esa11-1/user_guide/b_ESA
(num, header, value) = self.getHeader('X-Ovh-Spam-Reason') (num, header, value) = self.getHeader('X-Ovh-Spam-Reason')
if num == -1: return [] if num == -1: return []
self.securityAppliances.add('OVH Anti-Spam') self.addSecurityAppliance('OVH Anti-Spam')
result = self.logger.colored(f'- OVH considered this message as SPAM', 'red') + ' and attached following information:\n' result = self.logger.colored(f'- OVH considered this message as SPAM', 'red') + ' and attached following information:\n'
value = SMTPHeadersAnalysis.flattenLine(value).replace(' ', '').replace('\t', '') value = SMTPHeadersAnalysis.flattenLine(value).replace(' ', '').replace('\t', '')
tmp = '' tmp = ''
@ -3825,7 +3849,7 @@ Src: https://www.cisco.com/c/en/us/td/docs/security/esa/esa11-1/user_guide/b_ESA
if num == -1: return [] if num == -1: return []
result = '' result = ''
self.securityAppliances.add('OVH Anti-Spam') self.addSecurityAppliance('OVH Anti-Spam')
value = SMTPHeadersAnalysis.flattenLine(value).replace(' ', '').replace('\t', '') value = SMTPHeadersAnalysis.flattenLine(value).replace(' ', '').replace('\t', '')
decoded = SMTPHeadersAnalysis.decodeSpamcause(value) decoded = SMTPHeadersAnalysis.decodeSpamcause(value)
@ -3915,7 +3939,7 @@ Src: https://www.cisco.com/c/en/us/td/docs/security/esa/esa11-1/user_guide/b_ESA
shown.add(header) shown.add(header)
if len(tmp) > 0: if len(tmp) > 0:
self.securityAppliances.add('SpamAssassin alike') self.addSecurityAppliance('SpamAssassin alike')
result = '\n- Found SpamAssassin like headers that might indicate Spam Risk score:\n' result = '\n- Found SpamAssassin like headers that might indicate Spam Risk score:\n'
result += tmp + '\n' result += tmp + '\n'
@ -4004,7 +4028,7 @@ Src: https://www.cisco.com/c/en/us/td/docs/security/esa/esa11-1/user_guide/b_ESA
(num, header, value) = self.getHeader('X-Spam-Status') (num, header, value) = self.getHeader('X-Spam-Status')
if num == -1: return [] if num == -1: return []
self.securityAppliances.add('SpamAssassin') self.addSecurityAppliance('SpamAssassin')
result = '- SpamAssassin spam report\n\n' result = '- SpamAssassin spam report\n\n'
return self._parseSpamAssassinStatus(result, '', num, header, value, SMTPHeadersAnalysis.Barracuda_Score_Thresholds) return self._parseSpamAssassinStatus(result, '', num, header, value, SMTPHeadersAnalysis.Barracuda_Score_Thresholds)
@ -4213,7 +4237,7 @@ Src: https://www.cisco.com/c/en/us/td/docs/security/esa/esa11-1/user_guide/b_ESA
(num, header, value) = self.getHeader('X-Spam-Flag') (num, header, value) = self.getHeader('X-Spam-Flag')
if num == -1: return [] if num == -1: return []
self.securityAppliances.add('SpamAssassin') self.addSecurityAppliance('SpamAssassin')
if value.strip().lower() == 'yes': if value.strip().lower() == 'yes':
result = self.logger.colored(f'- SpamAssassin marked this message as SPAM:\n', 'red') result = self.logger.colored(f'- SpamAssassin marked this message as SPAM:\n', 'red')
@ -4257,14 +4281,14 @@ Src: https://www.cisco.com/c/en/us/td/docs/security/esa/esa11-1/user_guide/b_ESA
def testSpamAssassinSpamLevel(self): def testSpamAssassinSpamLevel(self):
(num, header, value) = self.getHeader('X-Spam-Level') (num, header, value) = self.getHeader('X-Spam-Level')
if num == -1: return [] if num == -1: return []
self.securityAppliances.add('SpamAssassin') self.addSecurityAppliance('SpamAssassin')
return self._parseAsteriskRiskScore('- SpamAssassin assigned following spam level to this message:\n', '', num, header, value) return self._parseAsteriskRiskScore('- SpamAssassin assigned following spam level to this message:\n', '', num, header, value)
def testSpamAssassinSpamReport(self): def testSpamAssassinSpamReport(self):
(num, header, value) = self.getHeader('X-Spam-Report') (num, header, value) = self.getHeader('X-Spam-Report')
if num == -1: return [] if num == -1: return []
self.securityAppliances.add('SpamAssassin') self.addSecurityAppliance('SpamAssassin')
if len(value.strip()) > 0: if len(value.strip()) > 0:
result = f'- SpamAssassin assigned following spam report to this message:\n' result = f'- SpamAssassin assigned following spam report to this message:\n'
tmp = '' tmp = ''
@ -4290,13 +4314,13 @@ Src: https://www.cisco.com/c/en/us/td/docs/security/esa/esa11-1/user_guide/b_ESA
if num == -1: return [] if num == -1: return []
props = value.split('|') props = value.split('|')
self.securityAppliances.add('MS Defender Advanced Threat Protection') self.addSecurityAppliance('MS Defender Advanced Threat Protection')
result = '- MS Defender Advanced Threat Protection enabled following protections on this message:\n' result = '- MS Defender Advanced Threat Protection enabled following protections on this message:\n'
for prop in props: for prop in props:
if prop in SMTPHeadersAnalysis.ATP_Message_Properties.keys(): if prop in SMTPHeadersAnalysis.ATP_Message_Properties.keys():
result += f'\t- ' + self.logger.colored(SMTPHeadersAnalysis.ATP_Message_Properties[prop], 'magenta') + '\n' result += f'\t- ' + self.logger.colored(SMTPHeadersAnalysis.ATP_Message_Properties[prop], 'magenta') + '\n'
self.securityAppliances.add('MS Defender for Office365 - ' + SMTPHeadersAnalysis.ATP_Message_Properties[prop]) self.addSecurityAppliance('MS Defender for Office365 - ' + SMTPHeadersAnalysis.ATP_Message_Properties[prop])
return { return {
'header' : header, 'header' : header,
@ -4309,7 +4333,7 @@ Src: https://www.cisco.com/c/en/us/td/docs/security/esa/esa11-1/user_guide/b_ESA
(num, header, value) = self.getHeader('X-Amp-Result') (num, header, value) = self.getHeader('X-Amp-Result')
if num == -1: return [] if num == -1: return []
self.securityAppliances.add('Cisco Advanced Malware Protection (AMP)') self.addSecurityAppliance('Cisco Advanced Malware Protection (AMP)')
result = '- Cisco Meraki Advanced Malware Protection (AMP) sandbox marked this message as:\n' result = '- Cisco Meraki Advanced Malware Protection (AMP) sandbox marked this message as:\n'
val = value.strip() val = value.strip()
k = value.strip().upper() k = value.strip().upper()
@ -4330,7 +4354,7 @@ Src: https://www.cisco.com/c/en/us/td/docs/security/esa/esa11-1/user_guide/b_ESA
(num, header, value) = self.getHeader('X-IP-Spam-Verdict') (num, header, value) = self.getHeader('X-IP-Spam-Verdict')
if num == -1: return [] if num == -1: return []
self.securityAppliances.add('SpamAssassin') self.addSecurityAppliance('SpamAssassin')
result = '- An old SpamAssassin SPAM verdict header:\n' result = '- An old SpamAssassin SPAM verdict header:\n'
col = 'cyan' col = 'cyan'
@ -4737,7 +4761,7 @@ Src: https://www.cisco.com/c/en/us/td/docs/security/esa/esa11-1/user_guide/b_ESA
obj1 = self._parseBulk(num, header, value) obj1 = self._parseBulk(num, header, value)
result += '\n' + obj1['analysis'] result += '\n' + obj1['analysis']
self.securityAppliances.add('MS ForeFront Anti-Spam') self.addSecurityAppliance('MS ForeFront Anti-Spam')
obj['analysis'] = result obj['analysis'] = result
return obj return obj
@ -4746,7 +4770,7 @@ Src: https://www.cisco.com/c/en/us/td/docs/security/esa/esa11-1/user_guide/b_ESA
(num, header, value) = self.getHeader('X-Microsoft-Antispam') (num, header, value) = self.getHeader('X-Microsoft-Antispam')
if num == -1: return [] if num == -1: return []
self.securityAppliances.add('MS ForeFront Anti-Spam') self.addSecurityAppliance('MS ForeFront Anti-Spam')
return self._parseBulk(num, header, value) return self._parseBulk(num, header, value)
def testForefrontAntiSCL(self): def testForefrontAntiSCL(self):
@ -4861,21 +4885,21 @@ Src: https://www.cisco.com/c/en/us/td/docs/security/esa/esa11-1/user_guide/b_ESA
(num, header, value) = self.getHeader('X-Forefront-Antispam-Report') (num, header, value) = self.getHeader('X-Forefront-Antispam-Report')
if num == -1: return [] if num == -1: return []
self.securityAppliances.add('MS ForeFront Anti-Spam') self.addSecurityAppliance('MS ForeFront Anti-Spam')
return self._parseAntiSpamReport(num, header, value) return self._parseAntiSpamReport(num, header, value)
def testForefrontAntiSpamReportUntrusted(self): def testForefrontAntiSpamReportUntrusted(self):
(num, header, value) = self.getHeader('X-Forefront-Antispam-Report-Untrusted') (num, header, value) = self.getHeader('X-Forefront-Antispam-Report-Untrusted')
if num == -1: return [] if num == -1: return []
self.securityAppliances.add('MS ForeFront Anti-Spam') self.addSecurityAppliance('MS ForeFront Anti-Spam')
return self._parseAntiSpamReport(num, header, value) return self._parseAntiSpamReport(num, header, value)
def testForefrontAntiSpamUntrusted(self): def testForefrontAntiSpamUntrusted(self):
(num, header, value) = self.getHeader('X-Microsoft-Antispam-Untrusted') (num, header, value) = self.getHeader('X-Microsoft-Antispam-Untrusted')
if num == -1: return [] if num == -1: return []
self.securityAppliances.add('MS ForeFront Anti-Spam') self.addSecurityAppliance('MS ForeFront Anti-Spam')
return self._parseAntiSpamReport(num, header, value) return self._parseAntiSpamReport(num, header, value)
def _parseAntiSpamReport(self, num, header, value): def _parseAntiSpamReport(self, num, header, value):
@ -5096,7 +5120,7 @@ Src: https://www.cisco.com/c/en/us/td/docs/security/esa/esa11-1/user_guide/b_ESA
if type(value) == bytes: if type(value) == bytes:
value = value.decode() value = value.decode()
self.securityAppliances.add('MS ForeFront Anti-Spam') self.addSecurityAppliance('MS ForeFront Anti-Spam')
result = '- Base64 encoded & encrypted Antispam Message Info:\n\n' result = '- Base64 encoded & encrypted Antispam Message Info:\n\n'
result += value result += value
@ -5123,7 +5147,7 @@ Src: https://www.cisco.com/c/en/us/td/docs/security/esa/esa11-1/user_guide/b_ESA
if num == -1: return [] if num == -1: return []
parsed = {} parsed = {}
self.securityAppliances.add('MS ForeFront Anti-Spam') self.addSecurityAppliance('MS ForeFront Anti-Spam')
result = '- This header denotes where to move received message. Informs about applied Mail Rules, target directory in user\'s Inbox.\n\n' result = '- This header denotes where to move received message. Informs about applied Mail Rules, target directory in user\'s Inbox.\n\n'
for entry in value.split(';'): for entry in value.split(';'):
@ -5348,7 +5372,7 @@ https://office365itpros.com/2020/11/26/enable-first-contact-safety-tip/
''' '''
vvv = self.logger.colored(value, 'magenta') vvv = self.logger.colored(value, 'magenta')
self.securityAppliances.add('Exchange Online Protection') self.addSecurityAppliance('Exchange Online Protection')
result = f'- The target\'s Office365 was configured with a First Contact Safety Tip:\n\t- {vvv}\n' result = f'- The target\'s Office365 was configured with a First Contact Safety Tip:\n\t- {vvv}\n'
return { return {
@ -5492,7 +5516,7 @@ This can lead to an internal information disclosure. This test shows potential h
if num == -1: return [] if num == -1: return []
vvv = self.logger.colored(value, 'magenta') vvv = self.logger.colored(value, 'magenta')
self.securityAppliances.add('Mimecast') self.addSecurityAppliance('Mimecast')
result = f'- Mimecast attached following Spam score: {vvv}\n' result = f'- Mimecast attached following Spam score: {vvv}\n'
try: try: