(YARA) Detect Process Kill Techniques

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rule UNPROTECT_disable_process {
    meta:
	author = "Thomas Roccia | @fr0gger_"
	description = "Disable blacklisted processes"
    strings:
        $api1 = "CreateToolhelp32Snapshot" nocase
        $api2 = "Process32First" nocase
        $api3 = "Process32Next" nocase
        $api4 = "TerminateProcess" nocase
        $api5 = "NtGetNextProcess" nocase
        $p1 = "taskkill.exe" nocase
        $p2 = "tskill.exe" nocase
    condition:
        uint32(uint32(0x3C)) == 0x4550 and 2 of ($api*) or any of ($p*) 
}

Associated Techniques

Technique Name Technique ID's Categories Snippet(s)
Kill Process U0403

Matching Samples 10 most recent

Sample Name Matching Techniques First Seen Last Seen
prestige.dll 8 2026-07-01 3 weeks, 4 days ago
2m96.exe 6 2026-06-30 3 weeks, 5 days ago
nopggplus.dll 5 2026-06-12 1 month, 2 weeks ago
Trickster.exe 4 2026-05-27 1 month, 4 weeks ago
Analist Pro V5.exe 5 2026-05-02 2 months, 3 weeks ago
CVE-2026-20817_PoC.exe 8 2026-04-09 3 months, 2 weeks ago
b2a17fbdf536bd79dba9eb5e4ea3...0fdd7eb07ca6c5bdf73de001.exe 11 2026-04-07 3 months, 2 weeks ago
Client-built.exe 5 2026-04-02 3 months, 3 weeks ago
agent.exe 7 2026-04-01 3 months, 3 weeks ago
FilterKeysSetter.exe 5 2026-03-28 3 months, 4 weeks ago
View All

Created

June 20, 2022

Last Revised

March 27, 2026