43 lines
1.7 KiB
Text
43 lines
1.7 KiB
Text
/*
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Yara Rule Set
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Author: Florian Roth
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Date: 2015-08-31
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Identifier: RWMC Powershell Credential Dumper
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*/
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rule Reveal_MemoryCredentials {
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meta:
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description = "Auto-generated rule - file Reveal-MemoryCredentials.ps1"
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license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
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author = "Florian Roth (Nextron Systems)"
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reference = "https://github.com/giMini/RWMC/"
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date = "2015-08-31"
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hash = "893c26818c424d0ff549c1fbfa11429f36eecd16ee69330c442c59a82ce6adea"
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id = "ca06c702-45fe-5ab5-b53e-c3f7b7006570"
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strings:
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$s1 = "$dumpAProcessPath = \"C:\\Windows\\temp\\msdsc.exe\"" fullword ascii
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$s2 = "$user = Get-ADUser -Filter {UserPrincipalName -like $loginPlainText -or sAMAccountName -like $loginPlainText}" fullword ascii
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$s3 = "Copy-Item -Path \"\\\\$computername\\\\c$\\windows\\temp\\lsass.dmp\" -Destination \"$logDirectoryPath\"" fullword ascii
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$s4 = "if($backupOperatorsFlag -eq \"true\") {$loginPlainText = $loginPlainText + \" = Backup Operators\"} " fullword ascii
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condition:
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filesize < 200KB and 1 of them
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}
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rule MiniDumpTest_msdsc {
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meta:
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description = "Auto-generated rule - file msdsc.exe"
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license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
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author = "Florian Roth (Nextron Systems)"
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reference = "https://github.com/giMini/RWMC/"
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date = "2015-08-31"
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hash = "477034933918c433f521ba63d2df6a27cc40a5833a78497c11fb0994d2fd46ba"
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id = "044ae157-aba2-5935-9afc-8a12853c84bc"
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strings:
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$s1 = "MiniDumpTest1.exe" fullword wide
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$s2 = "MiniDumpWithTokenInformation" fullword ascii
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$s3 = "MiniDumpTest1" fullword wide
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$s6 = "Microsoft 2008" fullword ascii
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condition:
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uint16(0) == 0x5a4d and filesize < 20KB and all of them
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}
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