(YARA) Detect RDTSC Check

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rule Detect_RDTSC: AntiDebug AntiSandbox{
    meta: 
        description = "Detect RDTSC as anti-debug and anti-sandbox"
        author = "Unprotect"
        comment = "Experimental rule"
    strings:
        $1 = { 0F 31 }
    condition:   
       uint16(0) == 0x5A4D and filesize < 1000KB and $1
}

Associated Techniques

Technique Name Technique ID's Categories Snippet(s)
RDTSC U0126

Matching Samples 10 most recent

Sample Name Matching Techniques First Seen Last Seen
Raid.exe 7 2026-04-08 1 week ago
2_5339247083163523934.exe 6 2026-03-27 2 weeks, 6 days ago
rootkit.exe 10 2026-03-24 3 weeks, 2 days ago
ngen.exe 7 2026-03-20 3 weeks, 6 days ago
loader.exe 5 2026-03-14 1 month ago
BBHloader.exe 6 2026-03-10 1 month ago
library.dll 8 2026-03-06 1 month, 1 week ago
DelphinDesktop.dll 8 2026-03-05 1 month, 1 week ago
um.exe 7 2026-03-02 1 month, 1 week ago
Malware.unknown.exe.malz 8 2026-02-22 1 month, 3 weeks ago
View All

Created

June 22, 2022

Last Revised

March 27, 2026