YARA · Embee Research
EMBEERESEARCH_Win_Qakbot_String_Decrypt_Nov_2022
No description has been set in the source file - EmbeeResearch
- Author
- Embee_Research @ Huntress
- Date
- 2022-11-14
- Modified
- 2023-10-18
- Score / Quality
- 75 / 75
What this rule detects
No description has been set in the source file - EmbeeResearch
Associated malware family: Qakbot.
Targets: Windows PE.
It defines 1 patterns (0 text, 1 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-qakbot-string-decrypt-nov-2022.yarDetection Rule License 1.1
rule EMBEERESEARCH_Win_Qakbot_String_Decrypt_Nov_2022 : FILE
{
meta:
= "No description has been set in the source file - EmbeeResearch"
= "Embee_Research @ Huntress"
= "0023872f-8edb-59d6-88eb-a76528ba6ec8"
= "2022-11-14"
= "2023-10-18"
= "https://github.com/embee-research/Yara-detection-rules/"
= "https://github.com/embee-research/Yara-detection-rules//blob/ac56d6f6fd2a30c8cb6e5c0455d6519210a8b0f4/Rules/2022/win_qakbot_string_decrypt_nov_2022.yar#L1-L15"
= "N/A"
= "d225f69fa4dd0e8d7c98e7f8968ad285f05b232225e9ce1070b7a23257a0ef9d"
= 75
= 75
= "FILE"
strings:
$qakbot_decrypt = {33 d2 8b c7 f7 75 10 8a 04 1a 8b 55 fc 32 04 17 88 04 39 47 83 ee 01}
condition:
uint16( 0 ) == 0x5a4d and $qakbot_decrypt
}
Strings (1 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $qakbot_decrypt | hex | {33 d2 8b c7 f7 75 10 8a 04 1a 8b 55 fc 32 04 17 88 04 39 47 83 ee 01} |
Condition
uint16( 0 ) == 0x5a4d and $qakbot_decryptIn plain words (Heuristic)
- The file must start with “MZ” — a Windows executable (PE).
- Pattern $qakbot_decrypt must be present.
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Licence & attribution
Author: Embee_Research @ Huntress
Source repository: Embee Research @ ac56d6f6fd
Licence: Detection Rule License 1.1 (repository licence)
Mirrored via YARA Forge 20260927, which prefixes rule names with the source and adds normalised meta fields.
Rule id: 0023872f-8edb-59d6-88eb-a76528ba6ec8
Tags:FILE
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