YARA · SEKOIA.IO Community
SEKOIA_Tool_Juicypotato_Exploit_Strings
Detects the JuicyPotato exploit based on strings
- Author
- Sekoia.io
- Date
- 2022-09-09
- Modified
- 2024-12-19
- Score / Quality
- 75 / 80
What this rule detects
Detects the JuicyPotato exploit based on strings
Associated malware family: Juicy Potato.
Targets: Windows PE.
It defines 9 patterns (9 text, 0 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
tool-juicypotato-exploit-strings.yarDetection Rule License 1.1
rule SEKOIA_Tool_Juicypotato_Exploit_Strings : FILE
{
meta:
= "Detects the JuicyPotato exploit based on strings"
= "Sekoia.io"
= "03d697ae-69a7-490b-8b3c-9a8c21fb46a2"
= "2022-09-09"
= "2024-12-19"
= "https://github.com/SEKOIA-IO/Community"
= "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/yara_rules/tool_juicypotato_exploit_strings.yar#L1-L25"
= "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
= "ef23ea2931a1b6e094c0d7bb813305c09a2214ce36680ae057926dfdc1105c80"
= 75
= 80
= "FILE"
= "1.0"
= "TLP:CLEAR"
strings:
$ = "JuicyPotato v%s"
$ = "-t createprocess call: <t> CreateProcessWithTokenW"
$ = "-p <program>: program to launch"
$ = "-l <port>: COM server listen port"
$ = "-m <ip>: COM server listen address"
$ = "-n <port>: RPC server listen port"
$ = "Error - Unknown NTLM message type..."
$ = "[+] authresult %d"
$ = "Waiting for auth..."
condition:
uint16be( 0 ) == 0x4d5a and filesize < 500KB and 2 of them
}
Strings (9 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $ | text | "JuicyPotato v%s" | |
| $ | text | "-t createprocess call: <t> CreateProcessWithTokenW" | |
| $ | text | "-p <program>: program to launch" | |
| $ | text | "-l <port>: COM server listen port" | |
| $ | text | "-m <ip>: COM server listen address" | |
| $ | text | "-n <port>: RPC server listen port" | |
| $ | text | "Error - Unknown NTLM message type..." | |
| $ | text | "[+] authresult %d" | |
| $ | text | "Waiting for auth..." |
Condition
uint16be( 0 ) == 0x4d5a and filesize < 500KB and 2 of themIn plain words (Heuristic)
- The file must start with “MZ” — a Windows executable (PE).
- The file must be smaller than 500KB (a cheap guard that skips large files).
- At least 2 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: 03d697ae-69a7-490b-8b3c-9a8c21fb46a2
Metadata
| version | 1.0 |
|---|---|
| classification | TLP:CLEAR |
Tags:FILE
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