YARA · ditekSHen detection
DITEKSHEN_MALWARE_Win_Warezov
Detects Warezov worm/downloader
- Author
- ditekSHen
- Date
- 2020-11-06
- Modified
- 2024-11-01
- Score / Quality
- 75 / 75
What this rule detects
Detects Warezov worm/downloader
Associated malware family: Warezov.
Targets: Windows PE.
It defines 7 patterns (6 text, 1 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
malware-win-warezov.yarBSD 2-Clause License
rule DITEKSHEN_MALWARE_Win_Warezov : FILE
{
meta:
= "Detects Warezov worm/downloader"
= "ditekSHen"
= "8cb1dcb1-981d-5ff2-b0d9-aa18dfbfc795"
= "2020-11-06"
= "2024-11-01"
= "https://github.com/ditekshen/detection"
= "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/yara/malware.yar#L4255-L4269"
= "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
= "e65922902fd18175a3ce7b600d46535e92b92240fa3ca83dced6f9ce14f3e815"
= 75
= 75
= "FILE"
strings:
$s1 = "ft\\Windows\\CurrentVersion\\Run" wide
$s2 = "DIR%SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run" wide
$s3 = "%WINDIR%\\sqhos32.wmf" wide
$s4 = "Accept: */*" fullword ascii
$s5 = "Range: bytes=" fullword ascii
$s6 = "module.exe" fullword ascii
$s7 = { 25 73 25 73 2e 25 73 ?? ?? 22 22 26 6c 79 79 56 00 00 00 00 25 73 25 30 34 64 25 30 32 64 25 30 32 64 00 }
condition:
uint16( 0 ) == 0x5a4d and 4 of them
}
Strings (7 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $s1 | text | "ft\\Windows\\CurrentVersion\\Run" | wide |
| $s2 | text | "DIR%SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run" | wide |
| $s3 | text | "%WINDIR%\\sqhos32.wmf" | wide |
| $s4 | text | "Accept: */*" | fullword ascii |
| $s5 | text | "Range: bytes=" | fullword ascii |
| $s6 | text | "module.exe" | fullword ascii |
| $s7 | hex | { 25 73 25 73 2e 25 73 ?? ?? 22 22 26 6c 79 79 56 00 00 00 00 25 73 25 30 34 64 25 30 32 64 25 30 32 64 00 } |
Condition
uint16( 0 ) == 0x5a4d and 4 of themIn plain words (Heuristic)
- The file must start with “MZ” — a Windows executable (PE).
- At least 4 patterns in the rule must match.
Test this rule in your browser
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References
Licence & attribution
Author: ditekSHen
Source repository: ditekSHen detection @ e76c93dcde
Licence: BSD 2-Clause License (repository licence)
Copyright notice: Copyright 2021 by ditekSHen (https://github.com/ditekshen/detection).
Mirrored via YARA Forge 20260927, which prefixes rule names with the source and adds normalised meta fields.
Rule id: 8cb1dcb1-981d-5ff2-b0d9-aa18dfbfc795
Tags:FILE
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