YARA · ditekSHen detection
DITEKSHEN_MALWARE_Win_Rookie_Downloader
Detect malware downlaoder, variant of ZombieBoy downloader
- Author
- ditekSHen
- Date
- 2020-11-06
- Modified
- 2024-11-01
- Score / Quality
- 75 / 75
What this rule detects
Detect malware downlaoder, variant of ZombieBoy downloader
Associated malware family: Rookie.
Targets: Windows PE.
It defines 5 patterns (5 text, 0 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
rule DITEKSHEN_MALWARE_Win_Rookie_Downloader : FILE
{
meta:
= "Detect malware downlaoder, variant of ZombieBoy downloader"
= "ditekSHen"
= "a991eecb-5275-5e33-bea4-e709590474a8"
= "2020-11-06"
= "2024-11-01"
= "https://github.com/ditekshen/detection"
= "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/yara/malware.yar#L10773-L10786"
= "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
= "6d5625c2cd7e3a51c2fce9948e691ff2d1b7cf85083708790f89e15c6522059b"
= 75
= 75
= "FILE"
= "MALWARE.Win.Trojan.RookIE-Downloader"
strings:
$s1 = "shell:::{2559a1f3-21d7-11d4-bdaf-00c04f60b9f0}" fullword ascii
$s2 = "taskkill /f /im hh.exe" fullword ascii
$s3 = "RookIE/1.0" fullword ascii
$s4 = "SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Internet Settings\\Zones\\0" fullword ascii
$s5 = "#32770" fullword ascii
condition:
uint16( 0 ) == 0x5a4d and 4 of them
}
Strings (5 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $s1 | text | "shell:::{2559a1f3-21d7-11d4-bdaf-00c04f60b9f0}" | fullword ascii |
| $s2 | text | "taskkill /f /im hh.exe" | fullword ascii |
| $s3 | text | "RookIE/1.0" | fullword ascii |
| $s4 | text | "SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Internet Settings\\Zones\\0" | fullword ascii |
| $s5 | text | "#32770" | fullword ascii |
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
Drop a file to scan it with this rule using YARA-X compiled to WebAssembly. Nothing is uploaded.
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: a991eecb-5275-5e33-bea4-e709590474a8
Metadata
| clamav1 | MALWARE.Win.Trojan.RookIE-Downloader |
|---|
Tags:FILE
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