YARA · ESET malware-ioc

ESET_Apt_Windows_Invisimole_Logs

Detects log files with collected created by InvisiMole's RC2CL backdoor

APT / threat actorInvisimoleESET malware-iocBSD 2-Clause LicenseCompiles with YARA-X

Author: ESET Research
Date: 2021-05-17
Score / Quality: 75 / 80

What this rule detects

Detects log files with collected created by InvisiMole's RC2CL backdoor

Associated malware family: Invisimole.

It has no patterns: the condition alone decides (modules, file properties or other rules).

Summary generated from the rule's metadata and condition.

Rule source

Download .yar

apt-windows-invisimole-logs.yarBSD 2-Clause License

rule ESET_Apt_Windows_Invisimole_Logs : FILE
{
	meta:
		description = "Detects log files with collected created by InvisiMole's RC2CL backdoor"
		author = "ESET Research"
		id = "151883ad-1f44-55b4-b12a-f0d399527189"
		date = "2021-05-17"
		modified = "2021-05-17"
		reference = "https://github.com/eset/malware-ioc/"
		source_url = "https://github.com/eset/malware-ioc/blob/17baf44964a77368e9149f4f593eb098beddf1c5/invisimole/invisimole.yar#L54-L77"
		license_url = "https://github.com/eset/malware-ioc/blob/17baf44964a77368e9149f4f593eb098beddf1c5/LICENSE"
		logic_hash = "d42423ccc768f1823c76d5cb2aec26434c796fc35bd4e2fbf435fcf7997d3ff0"
		score = 75
		quality = 80
		tags = "FILE"
		license = "BSD 2-Clause"
		version = "1"

	condition:
		uint32( 0 ) == 0x08F1CAA1 or uint32( 0 ) == 0x08F1CAA2 or uint32( 0 ) == 0x08F1CCC0 or uint32( 0 ) == 0x08F2AFC0 or uint32( 0 ) == 0x083AE4DF or uint32( 0 ) == 0x18F2CBB1 or uint32( 0 ) == 0x1900ABBA or uint32( 0 ) == 0x24F2CEA1 or uint32( 0 ) == 0xDA012193 or uint32( 0 ) == 0xDA018993 or uint32( 0 ) == 0xDA018995 or uint32( 0 ) == 0xDD018991
}

Condition

uint32( 0 ) == 0x08F1CAA1 or uint32( 0 ) == 0x08F1CAA2 or uint32( 0 ) == 0x08F1CCC0 or uint32( 0 ) == 0x08F2AFC0 or uint32( 0 ) == 0x083AE4DF or uint32( 0 ) == 0x18F2CBB1 or uint32( 0 ) == 0x1900ABBA or uint32( 0 ) == 0x24F2CEA1 or uint32( 0 ) == 0xDA012193 or uint32( 0 ) == 0xDA018993 or uint32( 0 ) == 0xDA018995 or uint32( 0 ) == 0xDD018991

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

https://github.com/eset/malware-ioc/

Licence & attribution

Author: ESET Research

Source repository: ESET malware-ioc @ 17baf44964

Licence: BSD 2-Clause License (stated in the rule's own meta)

“BSD 2-Clause”

Original rule

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

Rule id: 151883ad-1f44-55b4-b12a-f0d399527189

Metadata

version	1

Tags:FILE

ESET_Apt_Windows_Invisimole
APT / threat actorESET malware-ioc· ESET Research· 2021-05-17
ESET_Apt_Windows_Invisimole_CPL_Loader
APT / threat actorESET malware-ioc· ESET Research· 2021-05-17
ESET_Apt_Windows_Invisimole_DNS_Downloader
APT / threat actorESET malware-ioc· ESET Research· 2021-05-17
ESET_Apt_Windows_Invisimole_SFX_Dropper
APT / threat actorESET malware-ioc· ESET Research· 2021-05-17
ESET_Apt_Windows_Invisimole_RC2CL_Backdoor
APT / threat actorESET malware-ioc· ESET Research· 2021-05-17
ESET_Apt_Windows_Invisimole_Wrapper_DLL
APT / threat actorESET malware-ioc· ESET Research· 2021-05-17
ESET_Apt_Windows_Invisimole_C2
APT / threat actorESET malware-ioc· ESET Research· 2021-05-17
ESET_Invisimole_Blob_PRIVATE
MalwareESET malware-ioc· ESET Research· 2021-05-17

More Invisimole rules