(YARA) YARA_XOR_Hunt

Download Raw

rule XOR_hunt
{
  meta:
    author = "Thomas Roccia | @fr0gger_"
    description = "100DaysOfYara - An attempt to catch malicious/suspicious pe file using xor for some data"
    status = "experimental"

  strings:
    $s1 = "http://" xor
    $s2 = "https://" xor
    $s3 = "ftp://" xor
    $s4 = "This program cannot be run in DOS mode" xor
    $s5 = "Mozilla/5.0" xor
    $s6 = "cmd /c" xor
    $s7 = "-ep bypass" xor

  condition:
     uint16(0) == 0x5A4D and any of them
}

Associated Techniques

Technique Name Technique ID's Snippet(s) OS
XOR Operation U0701 E1027.m02

Matching Samples 10 most recent

Sample Name Matching Techniques First Seen Last Seen
Dozzyjean Test pdf.exe 4 2025-01-20 1 day, 12 hours ago
1663704907_themetool.exe 6 2025-01-20 1 day, 20 hours ago
Musify.exe 2 2025-01-19 2 days, 7 hours ago
Stellaris v2.3.0-v3.12.5 Plus 24 Trainer.exe 8 2025-01-18 3 days, 3 hours ago
Captvty.exe 5 2025-01-17 4 days, 12 hours ago
Captvty.exe 5 2025-01-17 4 days, 16 hours ago
msimg32.dll 2 2025-01-14 1 week ago
Voice.ai-Downloader.exe 7 2025-01-13 1 week, 1 day ago
ZClient.exe 12 2025-01-13 1 week, 1 day ago
3552dda80bd6875c1ed1273ca756...e2f757266dae70f60bf204089a4a 5 2025-01-12 1 week, 2 days ago
View All

Created

January 4, 2024

Last Revised

January 4, 2024