YARA · ditekSHen detection
DITEKSHEN_MALWARE_Win_FOXGRABBER
Detects FOXGRABBER utility
- Author
- ditekSHen
- Date
- 2020-11-06
- Modified
- 2024-11-01
- Score / Quality
- 75 / 75
What this rule detects
Detects FOXGRABBER utility
Associated malware family: FOXGRABBER.
Targets: Windows PE.
It defines 6 patterns (6 text, 0 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
malware-win-foxgrabber.yarBSD 2-Clause License
rule DITEKSHEN_MALWARE_Win_FOXGRABBER : FILE
{
meta:
= "Detects FOXGRABBER utility"
= "ditekSHen"
= "b98e501c-e9c6-5fcc-bfa0-9475ce32864c"
= "2020-11-06"
= "2024-11-01"
= "https://github.com/ditekshen/detection"
= "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/yara/malware.yar#L5877-L5890"
= "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
= "5ecba516f1155bdcccf83b0a034b11d8eac8619d4c3326fdbc76082fbe4daf02"
= 75
= 75
= "FILE"
strings:
$s1 = "start grabbing" wide
$s2 = "end grabbing in" wide
$s3 = "error of copying files from comp:" wide
$s4 = "\\Firefox\\" wide nocase
$pdb1 = "\\obj\\Debug\\grabff.pdb" ascii
$pdb2 = "\\obj\\Release\\grabff.pdb" ascii
condition:
uint16( 0 ) == 0x5a4d and ( all of ( $s* ) or ( 1 of ( $pdb* ) and 1 of ( $s* ) ) )
}
Strings (6 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $s1 | text | "start grabbing" | wide |
| $s2 | text | "end grabbing in" | wide |
| $s3 | text | "error of copying files from comp:" | wide |
| $s4 | text | "\\Firefox\\" | wide nocase |
| $pdb1 | text | "\\obj\\Debug\\grabff.pdb" | ascii |
| $pdb2 | text | "\\obj\\Release\\grabff.pdb" | ascii |
Condition
uint16( 0 ) == 0x5a4d and ( all of ( $s* ) or ( 1 of ( $pdb* ) and 1 of ( $s* ) ) )In plain words (Heuristic)
- The file must start with “MZ” — a Windows executable (PE).
- All patterns in ( $s* ) must match.
- At least 1 patterns in ( $pdb* ) must match.
- At least 1 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: b98e501c-e9c6-5fcc-bfa0-9475ce32864c
Tags:FILE
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