YARA · Mandiant red team tool countermeasures
FIREEYE_RT_Hacktool_MSIL_Sharpivot_3
This rule looks for .NET PE files that have the strings of various method names in the SharPivot code.
- Author
- FireEye
- Date
- 2020-12-08
- Modified
- 2020-12-10
- Score / Quality
- 75 / 75
What this rule detects
This rule looks for .NET PE files that have the strings of various method names in the SharPivot code.
Targets: Windows PE.
It defines 17 patterns (17 text, 0 hex, 0 regex).
YARA-X says: warning[duplicate_pattern_value]: duplicate pattern value
Summary generated from the rule's metadata and condition.
Rule source
rule FIREEYE_RT_Hacktool_MSIL_Sharpivot_3 : FILE
{
meta:
= "This rule looks for .NET PE files that have the strings of various method names in the SharPivot code."
= "FireEye"
= "616333fc-4075-5f04-823a-1164717a2b87"
= "2020-12-08"
= "2020-12-10"
= "https://github.com/mandiant/red_team_tool_countermeasures/"
= "https://github.com/mandiant/red_team_tool_countermeasures//blob/3561b71724dbfa3e2bb78106aaa2d7f8b892c43b/rules/SHARPIVOT/production/yara/HackTool_MSIL_SharPivot_3.yar#L4-L31"
= "https://github.com/mandiant/red_team_tool_countermeasures//blob/3561b71724dbfa3e2bb78106aaa2d7f8b892c43b/LICENSE.txt"
= "e4efa759d425e2f26fbc29943a30f5bd"
= "ecf13e47e409efd68b508735a84be6a1627f5b0c0cea6b90434fc9ba5b1d8cf5"
= 75
= 75
= "FILE"
= 3
strings:
$msil = "_CorExeMain" ascii wide
$str1 = "SharPivot" ascii wide
$str2 = "ParseArgs" ascii wide
$str3 = "GenRandomString" ascii wide
$str4 = "ScheduledTaskExists" ascii wide
$str5 = "ServiceExists" ascii wide
$str6 = "lpPassword" ascii wide
$str7 = "execute" ascii wide
$str8 = "WinRM" ascii wide
$str9 = "SchtaskMod" ascii wide
$str10 = "PoisonHandler" ascii wide
$str11 = "SCShell" ascii wide
$str12 = "SchtaskMod" ascii wide
$str13 = "ServiceHijack" ascii wide
$str14 = "commandArg" ascii wide
$str15 = "payloadPath" ascii wide
$str16 = "Schtask" ascii wide
condition:
( uint16( 0 ) == 0x5A4D and uint32( uint32( 0x3C ) ) == 0x00004550 ) and $msil and all of ( $str* )
}
Strings (17 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $msil | text | "_CorExeMain" | ascii wide |
| $str1 | text | "SharPivot" | ascii wide |
| $str2 | text | "ParseArgs" | ascii wide |
| $str3 | text | "GenRandomString" | ascii wide |
| $str4 | text | "ScheduledTaskExists" | ascii wide |
| $str5 | text | "ServiceExists" | ascii wide |
| $str6 | text | "lpPassword" | ascii wide |
| $str7 | text | "execute" | ascii wide |
| $str8 | text | "WinRM" | ascii wide |
| $str9 | text | "SchtaskMod" | ascii wide |
| $str10 | text | "PoisonHandler" | ascii wide |
| $str11 | text | "SCShell" | ascii wide |
| $str12 | text | "SchtaskMod" | ascii wide |
| $str13 | text | "ServiceHijack" | ascii wide |
| $str14 | text | "commandArg" | ascii wide |
| $str15 | text | "payloadPath" | ascii wide |
| $str16 | text | "Schtask" | ascii wide |
Condition
( uint16( 0 ) == 0x5A4D and uint32( uint32( 0x3C ) ) == 0x00004550 ) and $msil and all of ( $str* )In plain words (Heuristic)
- The file must start with “MZ” — a Windows executable (PE).
- All patterns in ( $str* ) must match.
- Pattern $msil must be present.
Test this rule in your browser
Drop a file to scan it with this rule using YARA-X compiled to WebAssembly. Nothing is uploaded.
Sample hashes
Hashes of samples the author lists in the rule's meta (look them up in your threat-intelligence platform).
- e4efa759d425e2f26fbc29943a30f5bd
Licence & attribution
Author: FireEye
Source repository: Mandiant red team tool countermeasures @ 3561b71724
Licence: BSD 2-Clause License (repository licence)
Copyright notice: Copyright (c) 2023, MANDIANT
Mirrored via YARA Forge 20260927, which prefixes rule names with the source and adds normalised meta fields.
Rule id: 616333fc-4075-5f04-823a-1164717a2b87
Metadata
| rev | 3 |
|---|
Tags:FILE
Related rules
- Hack toolMandiant red team tool countermeasures· FireEye· 2020-12-08
- Hack toolMandiant red team tool countermeasures· FireEye· 2020-12-08
- Hack toolMandiant red team tool countermeasures· FireEye· 2020-11-25
- Hack toolMandiant red team tool countermeasures· FireEye· 2020-12-08
- Hack toolMandiant red team tool countermeasures· FireEye· 2020-12-01
- Hack toolMandiant red team tool countermeasures· FireEye· 2020-12-01
- Hack toolMandiant red team tool countermeasures· FireEye· 2020-11-25
- Hack toolMandiant red team tool countermeasures· FireEye· 2020-11-25