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YARA · CAPE Sandbox (CAPEv2)

CAPE_Qakbotantivm

QakBot AntiVM bypass

MalwareQakbotCAPE Sandbox (CAPEv2)GNU General Public License v3.0Compiles with YARA-X
Author
kevoreilly
Date
2022-03-16
Modified
2024-02-16
Score / Quality
75 / 70

What this rule detects

QakBot AntiVM bypass

Associated malware family: Qakbot.

It defines 1 patterns (0 text, 1 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
qakbotantivm.yarGNU General Public License v3.0
rule CAPE_Qakbotantivm
{
	meta:
		description = "QakBot AntiVM bypass"
		author = "kevoreilly"
		id = "7446522a-788a-512d-ad68-2fcc56169f5a"
		date = "2022-03-16"
		modified = "2024-02-16"
		reference = "https://github.com/kevoreilly/CAPEv2"
		source_url = "https://github.com/kevoreilly/CAPEv2/blob/6b15e76f28cd83fd1187da6c9aaaad2174255356/analyzer/windows/data/yara/QakBot.yar#L48-L59"
		license_url = "https://github.com/kevoreilly/CAPEv2/blob/6b15e76f28cd83fd1187da6c9aaaad2174255356/LICENSE"
		hash = "e269497ce458b21c8427b3f6f6594a25d583490930af2d3395cb013b20d08ff7"
		logic_hash = "20f1cd28f38945a3aa328e77e78525fb1ffc47ecf54d5a40c2f18264c3973989"
		score = 75
		quality = 70
		tags = ""
		cape_options = "bp0=$antivm1,action0=unwind,count=1"

	strings:
		$antivm1 = {55 8B EC 3A E4 0F [2] 00 00 00 6A 04 58 3A E4 0F [2] 00 00 00 C7 44 01 [5] 81 44 01 [5] 66 3B FF 74 ?? 6A 04 58 66 3B ED 0F [2] 00 00 00 C7 44 01 [5] 81 6C 01 [5] EB}

	condition:
		all of them
}

Strings (1 patterns)

IdentifierTypeValueModifiers
$antivm1hex{55 8B EC 3A E4 0F [2] 00 00 00 6A 04 58 3A E4 0F [2] 00 00 00 C7 44 01 [5] 81 44 01 [5] 66 3B FF 74 ?? 6A 04 58 66 3B ED 0F [2] 00 00 00 C7 44 01 [5] 81 6C 01 …

Condition

all of them

In plain words (Heuristic)

  • All patterns in the rule must match.

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References

Sample hashes

Hashes of samples the author lists in the rule's meta (look them up in your threat-intelligence platform).

  • e269497ce458b21c8427b3f6f6594a25d583490930af2d3395cb013b20d08ff7

Licence & attribution

Author: kevoreilly

Source repository: CAPE Sandbox (CAPEv2) @ 6b15e76f28

Licence: GNU General Public License v3.0 (repository licence)

Copyright notice: Cuckoo Sandbox is copyrighted by the Cuckoo Foundation.

Original rule

Mirrored via YARA Forge 20260927, which prefixes rule names with the source and adds normalised meta fields.

Rule id: 7446522a-788a-512d-ad68-2fcc56169f5a

Metadata

cape_optionsbp0=$antivm1,action0=unwind,count=1

Related rules

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