YARA · SEKOIA.IO Community
SEKOIA_Tool_Multidump_Strings
Detects MultiDump
- Author
- Sekoia.io
- Date
- 2024-03-19
- Modified
- 2024-12-19
- Score / Quality
- 75 / 80
What this rule detects
Detects MultiDump
Targets: Windows PE.
It defines 6 patterns (6 text, 0 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
tool-multidump-strings.yarDetection Rule License 1.1
rule SEKOIA_Tool_Multidump_Strings : FILE
{
meta:
= "Detects MultiDump"
= "Sekoia.io"
= "4897c898-01dd-40d2-bf28-266231c88f8a"
= "2024-03-19"
= "2024-12-19"
= "https://github.com/SEKOIA-IO/Community"
= "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/yara_rules/tool_multidump_strings.yar#L1-L22"
= "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
= "8d98cf89d56f5a949023364f94c8d55f8875408b082fb52e118f99d46533124d"
= 75
= 80
= "FILE"
= "1.0"
= "TLP:CLEAR"
strings:
$ = "--nodump\tDisable LSASS dumping"
$ = "-r 192.168.1.100:5000"
$ = "Path to save procdump.exe"
$ = "[!] CreateFileW [R] Failed With Error"
$ = "LSASS is Running, Continuin"
$ = "Dumping LSASS Using ProcDump"
condition:
uint16be( 0 ) == 0x4d5a and filesize < 1MB and 3 of them
}
Strings (6 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $ | text | "--nodump\tDisable LSASS dumping" | |
| $ | text | "-r 192.168.1.100:5000" | |
| $ | text | "Path to save procdump.exe" | |
| $ | text | "[!] CreateFileW [R] Failed With Error" | |
| $ | text | "LSASS is Running, Continuin" | |
| $ | text | "Dumping LSASS Using ProcDump" |
Condition
uint16be( 0 ) == 0x4d5a and filesize < 1MB and 3 of themIn plain words (Heuristic)
- The file must start with “MZ” — a Windows executable (PE).
- The file must be smaller than 1MB (a cheap guard that skips large files).
- At least 3 patterns in the rule must match.
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References
Licence & attribution
Author: Sekoia.io
Source repository: SEKOIA.IO Community @ a438a5901a
Licence: Detection Rule License 1.1 (repository licence)
Mirrored via YARA Forge 20260927, which prefixes rule names with the source and adds normalised meta fields.
Rule id: 4897c898-01dd-40d2-bf28-266231c88f8a
Metadata
| version | 1.0 |
|---|---|
| classification | TLP:CLEAR |
Tags:FILE
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