(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 |
---|---|---|---|
Grimace.dll | 6 | 2025-05-11 | 4 hours, 14 minutes ago |
Updater.exe | 4 | 2025-05-08 | 2 days, 22 hours ago |
DgtAutoTTS.exe | 3 | 2025-05-06 | 5 days, 14 hours ago |
WalkSimulator-NonUtilla (2).dll | 6 | 2025-05-06 | 5 days, 15 hours ago |
FinalBuilder8.exe | 5 | 2025-05-05 | 6 days, 7 hours ago |
viewer.exe | 4 | 2025-05-01 | 1 week, 3 days ago |
decoder.exe | 4 | 2025-04-30 | 1 week, 4 days ago |
Xtra_Slayed-cleaned-cleaned.exe | 5 | 2025-04-29 | 1 week, 5 days ago |
hmpalert.exe | 8 | 2025-04-20 | 1 week, 5 days ago |
ZAP.exe | 6 | 2025-04-26 | 2 weeks ago |
Created
January 4, 2024
Last Revised
January 4, 2024