41 lines
No EOL
1.5 KiB
Text
41 lines
No EOL
1.5 KiB
Text
/*
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Yara Rule Set
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Author: Florian Roth
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Date: 2017-07-27
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Identifier: PowerShell Empire Eval
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2 of 8 rules
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*/
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/* Rule Set ----------------------------------------------------------------- */
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rule PowerShell_Emp_Eval_Jul17_A1 {
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meta:
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description = "Detects suspicious sample with PowerShell content "
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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 = "PowerShell Empire Eval"
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date = "2017-07-27"
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hash1 = "4d10e80c7c80ef040efc680424a429558c7d76a965685bbc295908cb71137eba"
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id = "1699f153-f972-5e06-a94b-eb95af637e6b"
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strings:
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$s1 = "powershell" wide
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$s2 = "pshcmd" fullword ascii
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condition:
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( uint16(0) == 0x5a4d and filesize < 30KB and all of them )
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}
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rule PowerShell_Emp_Eval_Jul17_A2 {
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meta:
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description = "Detects suspicious sample with PowerShell content "
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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 = "PowerShell Empire Eval"
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date = "2017-07-27"
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hash1 = "e14c139159c23fdc18969afe57ec062e4d3c28dd42a20bed8ddde37ab4351a51"
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id = "8f299fcd-156c-5ce1-8582-c2a4ff2c0cfc"
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strings:
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$x1 = "\\support\\Release\\ab.pdb" ascii
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$s2 = "powershell.exe" ascii fullword
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condition:
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( uint16(0) == 0x5a4d and filesize < 200KB and all of them )
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} |