(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 |
|---|---|---|---|
| main.exe | 4 | 2025-12-14 | 4 days, 11 hours ago |
| efak.exe | 6 | 2025-12-13 | 5 days, 4 hours ago |
| P8PA4H.exe | 1 | 2025-12-11 | 1 week ago |
| cmd.exe | 7 | 2025-12-10 | 1 week, 1 day ago |
| steghide.exe | 6 | 2025-12-09 | 1 week, 2 days ago |
| setup.exe | 11 | 2025-12-09 | 1 week, 2 days ago |
| 738a31e7a0d96fe1b0ad6778db39...ac33ce8a84f26b71c00c26b9.exe | 4 | 2025-12-07 | 1 week, 4 days ago |
| pafish64.exe | 10 | 2025-12-06 | 1 week, 5 days ago |
| fpCSEvtSvc.scam | 5 | 2025-12-01 | 2 weeks, 3 days ago |
| 3KTrangXinhTQ.exe | 2 | 2025-12-01 | 2 weeks, 4 days ago |
Created
January 4, 2024
Last Revised
January 4, 2024