← Back to SOC feed Coverage →

Chinese Hacktool Set - file SQLCracker.exe

yara LOW Yara-Rules
community
This rule was pulled from an open-source repository and enriched with AI. Validate in a test environment before deploying to production.
View original rule at Yara-Rules →
Retrieved: 2026-07-15T23:00:00Z · Confidence: medium

Hunt Hypothesis

This hunt targets the presence of the SQLCracker.exe utility within the environment to identify potential reconnaissance or lateral movement activities associated with the Chinese Hacktool threat set. Proactively searching for this file in Azure Sentinel is critical because its low-severity classification may cause it to be overlooked by automated alerts, yet its execution could signal early-stage adversary infrastructure establishment requiring manual validation.

YARA Rule

rule SQLCracker {
	meta:
		description = "Chinese Hacktool Set - file SQLCracker.exe"
		author = "Florian Roth"
		reference = "http://tools.zjqhr.com/"
		date = "2015-06-13"
		hash = "1aa5755da1a9b050c4c49fc5c58fa133b8380410"
	strings:
		$s0 = "msvbvm60.dll" fullword ascii /* reversed goodware string 'lld.06mvbvsm' */
		$s1 = "_CIcos" fullword ascii
		$s2 = "kernel32.dll" fullword ascii
		$s3 = "cKmhV" fullword ascii
		$s4 = "080404B0" fullword wide
	condition:
		uint16(0) == 0x5a4d and filesize < 125KB and all of them
}

Deployment Notes

This YARA rule can be deployed in the following contexts:

This rule contains 5 string patterns in its detection logic.

References

False Positive Guidance

Here are 5 specific false positive scenarios for the Chinese Hacktool Set - file SQLCracker.exe detection rule, tailored for a legitimate enterprise environment:

Original source: https://github.com/Yara-Rules/rules/blob/main/malware/TOOLKIT_Chinese_Hacktools.yar