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Steal IE 7 credential

yara LOW Yara-Rules
communitycredential-theft
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: 2026-04-22T09:00:00Z · Confidence: medium

Hunt Hypothesis

The hypothesis is that an adversary is attempting to exfiltrate Internet Explorer 7 credentials, which may indicate a low-privilege credential theft tactic. SOC teams should proactively hunt for this behavior in Azure Sentinel to identify potential lateral movement or persistence mechanisms that could escalate to more severe threats.

YARA Rule

rule cred_ie7 {
    meta:
        author = "x0r"
        description = "Steal IE 7 credential"
	version = "0.1"
    strings:
        $f1 = "Crypt32.dll" nocase
        $c1 = "CryptUnprotectData"
        $s1 = "abe2869f-9b47-4cd9-a358-c22904dba7f7" nocase
    condition:
        all of them
}

Deployment Notes

This YARA rule can be deployed in the following contexts:

This rule contains 3 string patterns in its detection logic.

False Positive Guidance

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