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Ransomware

yara LOW Yara-Rules
communityransomware
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: 2026-05-07T23:00:00Z · Confidence: medium

Hunt Hypothesis

The hypothesis is that the detection rule identifies potential ransomware activity through unusual file encryption or modification patterns, which could indicate an adversary attempting to encrypt and lock user data. SOC teams should proactively hunt for this behavior in Azure Sentinel to detect and respond to ransomware attacks early, before significant data loss or operational disruption occurs.

YARA Rule

rule ransomware : svpeng android
{
	meta:
		author = "Fernando Denis https://twitter.com/fdrg21"
		reference = "https://koodous.com/"
		description = "Ransomware"
		in_the_wild = true

	strings:
		$a =  {6e 64 20 79 6f 75 72 27 73 20 64 65 76 69 63 65 20 77 69 6c 6c 20 72 65 62 6f 6f 74 20 61 6e 64}
		$b = "ADD_DEVICE_ADMI"

	condition:
		$a and $b
}

Deployment Notes

This YARA rule can be deployed in the following contexts:

This rule contains 2 string patterns in its detection logic.

References

False Positive Guidance

Original source: https://github.com/Yara-Rules/rules/blob/main/deprecated/Android/Android_Malware_Ramsonware.yar