YARA · ditekSHen detection
DITEKSHEN_MALWARE_Win_Metastealer
Detects MetaStealer infostealer
- Author
- ditekSHen
- Date
- 2020-11-06
- Modified
- 2024-11-01
- Score / Quality
- 75 / 75
What this rule detects
Detects MetaStealer infostealer
Associated malware family: Metastealer.
Targets: Windows PE.
It defines 16 patterns (16 text, 0 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
malware-win-metastealer.yarBSD 2-Clause License
rule DITEKSHEN_MALWARE_Win_Metastealer : FILE
{
meta:
= "Detects MetaStealer infostealer"
= "ditekSHen"
= "46aa30c1-12c2-56df-8c65-0b96147f9051"
= "2020-11-06"
= "2024-11-01"
= "https://github.com/ditekshen/detection"
= "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/yara/malware.yar#L11400-L11423"
= "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
= "260c6d90a89ddb6219a5cbad18058e41611ae2dc68a8d4e589fa6ca81853752f"
= 75
= 75
= "FILE"
strings:
$s1 = "! #\"'&(&*)>=@?POQOROSOTOUOVOWOXOYOZO[O^]{z|z}z~z" fullword wide
$s2 = "{0}{1}{2}" fullword wide
$s3 = "localhost" fullword wide
$s4 = "\\tdata" fullword wide
$s5 = "DecryptBlob" fullword ascii
$s6 = "GetMac" fullword ascii
$s7 = "GetHdc" fullword ascii
$s8 = "FindProc" fullword ascii
$s9 = "targetPid" fullword ascii
$s10 = "MessageSecurityOverTcp" fullword ascii
$s11 = "ListOfProcesses" fullword ascii
$s12 = "ListOfPrograms" fullword ascii
$s13 = "browserPaths" fullword ascii
$s14 = "configs" fullword ascii
$s15 = "scanners" fullword ascii
$s16 = "FileScannerRule" fullword ascii
condition:
uint16( 0 ) == 0x5a4d and 7 of ( $s* )
}
Strings (16 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $s1 | text | "! #\"'&(&*)>=@?POQOROSOTOUOVOWOXOYOZO[O^]{z|z}z~z" | fullword wide |
| $s2 | text | "{0}{1}{2}" | fullword wide |
| $s3 | text | "localhost" | fullword wide |
| $s4 | text | "\\tdata" | fullword wide |
| $s5 | text | "DecryptBlob" | fullword ascii |
| $s6 | text | "GetMac" | fullword ascii |
| $s7 | text | "GetHdc" | fullword ascii |
| $s8 | text | "FindProc" | fullword ascii |
| $s9 | text | "targetPid" | fullword ascii |
| $s10 | text | "MessageSecurityOverTcp" | fullword ascii |
| $s11 | text | "ListOfProcesses" | fullword ascii |
| $s12 | text | "ListOfPrograms" | fullword ascii |
| $s13 | text | "browserPaths" | fullword ascii |
| $s14 | text | "configs" | fullword ascii |
| $s15 | text | "scanners" | fullword ascii |
| $s16 | text | "FileScannerRule" | fullword ascii |
Condition
uint16( 0 ) == 0x5a4d and 7 of ( $s* )In plain words (Heuristic)
- The file must start with “MZ” — a Windows executable (PE).
- At least 7 patterns in ( $s* ) must match.
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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: 46aa30c1-12c2-56df-8c65-0b96147f9051
Tags:FILE
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