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DITEKSHEN_MALWARE_Linux_Chachaddos

ChaChaDDoS variant of XorDDoS payload

MalwareChachaddosditekSHen detectionBSD 2-Clause LicenseCompiles with YARA-X
Author
ditekSHen
Date
2020-11-06
Modified
2024-11-01
Score / Quality
75 / 75

What this rule detects

ChaChaDDoS variant of XorDDoS payload

Associated malware family: Chachaddos.

It defines 8 patterns (8 text, 0 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
malware-linux-chachaddos.yarBSD 2-Clause License
rule DITEKSHEN_MALWARE_Linux_Chachaddos : FILE
{
	meta:
		description = "ChaChaDDoS variant of XorDDoS payload"
		author = "ditekSHen"
		id = "78a5cf3a-0e84-59bd-a936-bd335647e3d0"
		date = "2020-11-06"
		modified = "2024-11-01"
		reference = "https://github.com/ditekshen/detection"
		source_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/yara/malware.yar#L403-L418"
		license_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
		logic_hash = "2bf99771046650820f02a24d5bd825afeacd03d1e865b05d8563a3ef74d521fb"
		score = 75
		quality = 75
		tags = "FILE"

	strings:
		$x1 = "[kworker/1:1]" ascii
		$x2 = "-- LuaSocket toolkit." ascii
		$x3 = "/etc/resolv.conf" ascii
		$x4 = "\"macaddress=\" .. DEVICE_MAC .. \"&device=\" .." ascii
		$x5 = "easy_attack_dns" ascii
		$x6 = "easy_attack_udp" ascii
		$x7 = "easy_attack_syn" ascii
		$x8 = "syn_probe" ascii

	condition:
		uint16( 0 ) == 0x457f and 6 of them
}

Strings (8 patterns)

IdentifierTypeValueModifiers
$x1text"[kworker/1:1]"ascii
$x2text"-- LuaSocket toolkit."ascii
$x3text"/etc/resolv.conf"ascii
$x4text"\"macaddress=\" .. DEVICE_MAC .. \"&device=\" .."ascii
$x5text"easy_attack_dns"ascii
$x6text"easy_attack_udp"ascii
$x7text"easy_attack_syn"ascii
$x8text"syn_probe"ascii

Condition

uint16( 0 ) == 0x457f and 6 of them

In plain words (Heuristic)

  • At least 6 patterns in the rule must match.

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References

Licence & attribution

Author: ditekSHen

Source repository: ditekSHen detection @ e76c93dcde

Licence: BSD 2-Clause License (repository licence)

Copyright notice: Copyright 2021 by ditekSHen (https://github.com/ditekshen/detection).

Original rule

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

Rule id: 78a5cf3a-0e84-59bd-a936-bd335647e3d0

Tags:FILE

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