Skip to content
yararules.org
Menu

YARA · CAPE Sandbox (CAPEv2)

CAPE_Slowloader

SlowLoader detonation aide for slow cpus (thread race)

GenericCAPE Sandbox (CAPEv2)GNU General Public License v3.0Compiles with YARA-X
Author
kevoreilly
Date
2024-09-23
Score / Quality
75 / 70

What this rule detects

SlowLoader detonation aide for slow cpus (thread race)

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

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
slowloader.yarGNU General Public License v3.0
rule CAPE_Slowloader
{
	meta:
		description = "SlowLoader detonation aide for slow cpus (thread race)"
		author = "kevoreilly"
		id = "05724bf4-b767-542d-a2dd-a9ae3e5ea5cc"
		date = "2024-09-23"
		modified = "2024-09-23"
		reference = "https://github.com/kevoreilly/CAPEv2"
		source_url = "https://github.com/kevoreilly/CAPEv2/blob/6b15e76f28cd83fd1187da6c9aaaad2174255356/analyzer/windows/data/yara/SlowLoader.yar#L1-L12"
		license_url = "https://github.com/kevoreilly/CAPEv2/blob/6b15e76f28cd83fd1187da6c9aaaad2174255356/LICENSE"
		logic_hash = "f07528c646ebd980a5e843caa4a4715e31b22c3cd091576600e9fe45d7fc2fe4"
		score = 75
		quality = 70
		tags = ""
		cape_options = "break-on-return=CreateProcessA,action0=sleep:1000,count=0"
		packed = "f6eeb73ffb3e6d6cc48f74344cb590614db7e3116ba00a52aefd7dff468a60a5"

	strings:
		$code = {0F B6 44 07 08 0F B6 54 1F 08 03 C2 25 FF 00 00 80 79 07 48 0D 00 FF FF FF 40 89 45 ?? 6A 00}

	condition:
		any of them
}

Strings (1 patterns)

IdentifierTypeValueModifiers
$codehex{0F B6 44 07 08 0F B6 54 1F 08 03 C2 25 FF 00 00 80 79 07 48 0D 00 FF FF FF 40 89 45 ?? 6A 00}

Condition

any of them

In plain words (Heuristic)

  • At least one pattern 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.

Drop a file here or click to chooseScanned locally with YARA-X. Files up to 200 MB.

Open in editor

References

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: 05724bf4-b767-542d-a2dd-a9ae3e5ea5cc

Metadata

cape_optionsbreak-on-return=CreateProcessA,action0=sleep:1000,count=0
packedf6eeb73ffb3e6d6cc48f74344cb590614db7e3116ba00a52aefd7dff468a60a5

Related rules