(YARA) YARA_XOR_Hunt
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 |
|---|---|---|---|
| FORScan.exe | 5 | 2026-01-09 | 2 days, 20 hours ago |
| TradingBot.exe | 4 | 2026-01-05 | 1 week ago |
| MANA X.exe | 5 | 2026-01-03 | 1 week, 2 days ago |
| Agent Tesla.exe | 3 | 2026-01-02 | 1 week, 2 days ago |
| CODM_2.3.1.exe | 2 | 2025-12-26 | 2 weeks, 2 days ago |
| encrypter.exe | 4 | 2025-12-25 | 2 weeks, 3 days ago |
| TS_4775.tmp | 7 | 2025-12-23 | 2 weeks, 6 days ago |
| reqloghad.dll | 7 | 2025-12-22 | 2 weeks, 6 days ago |
| bankroll.exe | 1 | 2025-12-21 | 3 weeks ago |
| MBSetup (3).exe | 6 | 2025-10-18 | 3 weeks, 2 days ago |
Created
January 4, 2024
Last Revised
January 4, 2024