YARA · Mandiant red team tool countermeasures
FIREEYE_RT_Hacktool_MSIL_Rubeus_1
The TypeLibGUID present in a .NET binary maps directly to the ProjectGuid found in the '.csproj' file of a .NET project. This rule looks for .NET PE files that contain the ProjectGuid found in the public Rubeus project.
- Author
- FireEye
- Date
- 2020-12-08
- Modified
- 2020-12-09
- Score / Quality
- 75 / 73
What this rule detects
The TypeLibGUID present in a .NET binary maps directly to the ProjectGuid found in the '.csproj' file of a .NET project. This rule looks for .NET PE files that contain the ProjectGuid found in the public Rubeus project.
Targets: Windows PE.
It defines 1 patterns (1 text, 0 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
rule FIREEYE_RT_Hacktool_MSIL_Rubeus_1 : FILE
{
meta:
= "The TypeLibGUID present in a .NET binary maps directly to the ProjectGuid found in the '.csproj' file of a .NET project. This rule looks for .NET PE files that contain the ProjectGuid found in the public Rubeus project."
= "FireEye"
= "0ca140ea-2b9f-5904-a4c0-8615229626f0"
= "2020-12-08"
= "2020-12-09"
= "https://github.com/mandiant/red_team_tool_countermeasures/"
= "https://github.com/mandiant/red_team_tool_countermeasures//blob/3561b71724dbfa3e2bb78106aaa2d7f8b892c43b/rules/RUBEUS/production/yara/HackTool_MSIL_Rubeus_1.yar#L4-L15"
= "https://github.com/mandiant/red_team_tool_countermeasures//blob/3561b71724dbfa3e2bb78106aaa2d7f8b892c43b/LICENSE.txt"
= "66e0681a500c726ed52e5ea9423d2654"
= "ad954f9922ab564d68cb4515b080f6ee69476a8d87f0038e2ae4c222f0e182d7"
= 75
= 73
= "FILE"
= 4
strings:
$typelibguid = "658C8B7F-3664-4A95-9572-A3E5871DFC06" ascii nocase wide
condition:
uint16( 0 ) == 0x5A4D and $typelibguid
}
Strings (1 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $typelibguid | text | "658C8B7F-3664-4A95-9572-A3E5871DFC06" | ascii nocase wide |
Condition
uint16( 0 ) == 0x5A4D and $typelibguidIn plain words (Heuristic)
- The file must start with “MZ” — a Windows executable (PE).
- Pattern $typelibguid 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).
- 66e0681a500c726ed52e5ea9423d2654
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: 0ca140ea-2b9f-5904-a4c0-8615229626f0
Metadata
| rev | 4 |
|---|
Tags:FILE
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