(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 |
|---|---|---|---|
| passper-for-rar_setup-com_passper.exe | 8 | 2026-02-18 | 3 days, 7 hours ago |
| ProtonVPN.Launcher.exe | 6 | 2026-02-18 | 3 days, 7 hours ago |
| Matos (2).exe | 4 | 2026-02-17 | 4 days, 7 hours ago |
| discord_game_sdk.dll | 1 | 2026-02-13 | 1 week, 1 day ago |
| DTC22.dll | 4 | 2026-02-11 | 1 week, 3 days ago |
| xDecoder 13.5.exe | 2 | 2026-02-11 | 1 week, 3 days ago |
| DentalCADApp.exe | 3 | 2026-02-10 | 1 week, 3 days ago |
| patcher - ORIGINAL.dll | 5 | 2026-02-10 | 1 week, 3 days ago |
| 2WLcc5qhdk.bat | 1 | 2026-02-07 | 2 weeks ago |
| main.exe | 11 | 2026-02-07 | 2 weeks ago |
Created
January 4, 2024
Last Revised
January 4, 2024