signature-base/yara/gen_redsails.yar

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/*
Yara Rule Set
Author: Florian Roth
Date: 2017-10-02
Identifier: Red Sails
Reference: https://github.com/BeetleChunks/redsails
*/
/* Rule Set ----------------------------------------------------------------- */
rule redSails_EXE {
meta:
description = "Detects Red Sails Hacktool by WinDivert references"
license = "https://creativecommons.org/licenses/by-nc/4.0/"
author = "Florian Roth"
reference = "https://github.com/BeetleChunks/redsails"
date = "2017-10-02"
hash1 = "7a7861d25b0c038d77838ecbd5ea5674650ad4f5faf7432a6f3cfeb427433fac"
strings:
$s1 = "bWinDivert64.dll" fullword ascii
$s2 = "bWinDivert32.dll" fullword ascii
condition:
( uint16(0) == 0x5a4d and filesize < 6000KB and all of them )
}
rule redSails_PY {
meta:
description = "Detects Red Sails Hacktool - Python"
license = "https://creativecommons.org/licenses/by-nc/4.0/"
author = "Florian Roth"
reference = "https://github.com/BeetleChunks/redsails"
date = "2017-10-02"
hash1 = "6ebedff41992b9536fe9b1b704a29c8c1d1550b00e14055e3c6376f75e462661"
hash2 = "5ec20cb99030f48ba512cbc7998b943bebe49396b20cf578c26debbf14176e5e"
strings:
$x1 = "Gained command shell on host" fullword ascii
$x2 = "[!] Received an ERROR in shell()" fullword ascii
$x3 = "Target IP address with backdoor installed" fullword ascii
$x4 = "Open backdoor port on target machine" fullword ascii
$x5 = "Backdoor port to open on victim machine" fullword ascii
condition:
1 of them
}