YARA · ditekSHen detection
DITEKSHEN_MALWARE_Win_Ficker
Detects Ficker infostealer
- Author
- ditekSHen
- Date
- 2020-11-06
- Modified
- 2024-11-01
- Score / Quality
- 75 / 75
What this rule detects
Detects Ficker infostealer
Associated malware family: Ficker.
Targets: Windows PE.
It defines 9 patterns (9 text, 0 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
malware-win-ficker.yarBSD 2-Clause License
rule DITEKSHEN_MALWARE_Win_Ficker : FILE
{
meta:
= "Detects Ficker infostealer"
= "ditekSHen"
= "1cfeea86-e8bf-50fb-ba08-435d7a14a913"
= "2020-11-06"
= "2024-11-01"
= "https://github.com/ditekshen/detection"
= "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/yara/malware.yar#L2038-L2055"
= "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
= "adcc0ffc0e1ded36dc41c22d10d2ea293d5740484203892bcecf89a5f4001452"
= 75
= 75
= "FILE"
= "MALWARE.Win.Trojan.Ficker"
strings:
$s1 = "JNOde\\" ascii
$s2 = "\"SomeNone" fullword ascii
$s3 = "kindmessage" fullword ascii
$s4 = "..\\\\?\\.\\UNC\\Windows stdio in console mode does not support writting non-UTF-8 byte sequences" ascii
$s5 = "..\\\\?\\.\\UNC\\Windows stdio in console mode does not support writing non-UTF-8 byte sequences" ascii
$s6 = "(os error other os erroroperation interrruptedwrite zerotimed" ascii
$s7 = "(os error other os erroroperation interruptedwrite zerotimed" ascii
$s8 = "nPipeAlreadyExistsWouldBlockInvalidInputInvalidDataTimedOutWriteZeroInterruptedOtherN" fullword ascii
$s9 = "_matherr(): %s in %s(%g, %g) (retval=%g)" ascii
condition:
uint16( 0 ) == 0x5a4d and 5 of them
}
Strings (9 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $s1 | text | "JNOde\\" | ascii |
| $s2 | text | "\"SomeNone" | fullword ascii |
| $s3 | text | "kindmessage" | fullword ascii |
| $s4 | text | "..\\\\?\\.\\UNC\\Windows stdio in console mode does not support writting non-UTF-8 byte sequences" | ascii |
| $s5 | text | "..\\\\?\\.\\UNC\\Windows stdio in console mode does not support writing non-UTF-8 byte sequences" | ascii |
| $s6 | text | "(os error other os erroroperation interrruptedwrite zerotimed" | ascii |
| $s7 | text | "(os error other os erroroperation interruptedwrite zerotimed" | ascii |
| $s8 | text | "nPipeAlreadyExistsWouldBlockInvalidInputInvalidDataTimedOutWriteZeroInterruptedOtherN" | fullword ascii |
| $s9 | text | "_matherr(): %s in %s(%g, %g) (retval=%g)" | ascii |
Condition
uint16( 0 ) == 0x5a4d and 5 of themIn plain words (Heuristic)
- The file must start with “MZ” — a Windows executable (PE).
- At least 5 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: 1cfeea86-e8bf-50fb-ba08-435d7a14a913
Metadata
| clamav_sig | MALWARE.Win.Trojan.Ficker |
|---|
Tags:FILE
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