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SFX with adobe.exe content

yara LOW Yara-Rules
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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: 2026-05-27T23:00:00Z · Confidence: medium

Hunt Hypothesis

Adversaries may use SFX (self-extracting executable) files containing Adobe.exe content to disguise malicious payloads and evade basic detection. SOC teams should proactively hunt for this behavior in Azure Sentinel to identify potential fileless attacks or obfuscated malware that could bypass traditional signature-based defenses.

YARA Rule

rule Malicious_SFX2 
{

    meta:
        description = "SFX with adobe.exe content"
        author = "Florian Roth"
        reference = "http://www.kernelmode.info/forum/viewtopic.php?f=16&t=3950"
        date = "2015-07-20"
        hash = "502e42dc99873c52c3ca11dd3df25aad40d2b083069e8c22dd45da887f81d14d"

    strings:
        $s1 = "adobe.exe" fullword ascii /* PEStudio Blacklist: strings */ /* score: '27.00' */
        $s2 = "Extracting files to %s folder$Extracting files to temporary folder" fullword wide /* PEStudio Blacklist: strings */ /* score: '26.00' */
        $s3 = "GETPASSWORD1" fullword wide /* PEStudio Blacklist: strings */ /* score: '23.00' */

    condition:
        uint16(0) == 0x5a4d and filesize < 1000KB and 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.

References

False Positive Guidance

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