YARA · Mandiant red team tool countermeasures
FIREEYE_RT_APT_Downloader_Win32_REDFLARE_1
No description has been set in the source file - FireEye-RT
- Author
- FireEye
- Date
- 2020-11-27
- Modified
- 2020-12-09
- Score / Quality
- 75 / 75
What this rule detects
No description has been set in the source file - FireEye-RT
Targets: Windows PE.
It defines 2 patterns (1 text, 1 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
rule FIREEYE_RT_APT_Downloader_Win32_REDFLARE_1 : FILE
{
meta:
= "No description has been set in the source file - FireEye-RT"
= "FireEye"
= "e8d7ee31-568e-58ac-98ad-49baa2eb37ea"
= "2020-11-27"
= "2020-11-27"
= "2020-12-09"
= "https://github.com/mandiant/red_team_tool_countermeasures/"
= "https://github.com/mandiant/red_team_tool_countermeasures//blob/3561b71724dbfa3e2bb78106aaa2d7f8b892c43b/rules/REDFLARE/production/yara/APT_Downloader_Win32_REDFLARE_1.yar#L4-L17"
= "https://github.com/mandiant/red_team_tool_countermeasures//blob/3561b71724dbfa3e2bb78106aaa2d7f8b892c43b/LICENSE.txt"
= "05b99d438dac63a5a993cea37c036673"
= "a340a2a732a9b1aa74ca9d84009a88d1b14b6a03140a859384c0d6e745e4a90a"
= 75
= 75
= "FILE"
= 1
strings:
$const = "Cookie: SID1=%s" fullword
$http_req = { 00 00 08 80 81 3D [4] BB 01 00 00 75 [1-10] 00 00 80 00 [1-4] 00 10 00 00 [1-4] 00 20 00 00 89 [1-10] 6A 00 8B [1-8] 5? 6A 00 6A 00 6A 00 8B [1-8] 5? 68 [4] 8B [1-8] 5? FF 15 [4-40] 6A 14 E8 }
condition:
( uint16( 0 ) == 0x5A4D ) and ( uint32( uint32( 0x3C ) ) == 0x00004550 ) and ( uint16( uint32( 0x3C ) + 0x18 ) == 0x010B ) and all of them
}
Strings (2 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $const | text | "Cookie: SID1=%s" | fullword |
| $http_req | hex | { 00 00 08 80 81 3D [4] BB 01 00 00 75 [1-10] 00 00 80 00 [1-4] 00 10 00 00 [1-4] 00 20 00 00 89 [1-10] 6A 00 8B [1-8] 5? 6A 00 6A 00 6A 00 8B [1-8] 5? 68 [4] 8 … |
Condition
( uint16( 0 ) == 0x5A4D ) and ( uint32( uint32( 0x3C ) ) == 0x00004550 ) and ( uint16( uint32( 0x3C ) + 0x18 ) == 0x010B ) and all of themIn plain words (Heuristic)
- The file must start with “MZ” — a Windows executable (PE).
- All patterns in the rule must match.
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).
- 05b99d438dac63a5a993cea37c036673
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: e8d7ee31-568e-58ac-98ad-49baa2eb37ea
Metadata
| rev | 1 |
|---|
Tags:FILE
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