YARA · SEKOIA.IO Community
SEKOIA_Generic_Sharpshooter_Payload_1
Detects payload created by SharpShooter
- Author
- Sekoia.io
- Date
- 2023-02-03
- Modified
- 2024-12-19
- Score / Quality
- 75 / 80
What this rule detects
Detects payload created by SharpShooter
It defines 4 patterns (4 text, 0 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
generic-sharpshooter-payload-1.yarDetection Rule License 1.1
rule SEKOIA_Generic_Sharpshooter_Payload_1 : FILE
{
meta:
= "Detects payload created by SharpShooter"
= "Sekoia.io"
= "82fd284a-47c2-4d29-9c80-f3affaa61a13"
= "2023-02-03"
= "2024-12-19"
= "https://github.com/SEKOIA-IO/Community"
= "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/yara_rules/generic_sharpshooter_payload_1.yar#L1-L18"
= "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
= "20e42042bd03bde3d0eec42f81d560896e8ec9e67ad64611dc4bc21152db3ff0"
= 75
= 80
= "FILE"
= "1.0"
= "TLP:CLEAR"
strings:
$ = "rc4 = function(key, str)"
$ = "var e={},i,b=0,c,x,l=0,a,r="
$ = "var plain = rc4("
$ = "<script language="
condition:
all of them and filesize < 2MB
}
Strings (4 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $ | text | "rc4 = function(key, str)" | |
| $ | text | "var e={},i,b=0,c,x,l=0,a,r=" | |
| $ | text | "var plain = rc4(" | |
| $ | text | "<script language=" |
Condition
all of them and filesize < 2MBIn plain words (Heuristic)
- The file must be smaller than 2MB (a cheap guard that skips large files).
- All patterns in the rule must match.
Test this rule in your browser
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Drop a file here or click to chooseScanned locally with YARA-X. Files up to 200 MB.
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: 82fd284a-47c2-4d29-9c80-f3affaa61a13
Metadata
| version | 1.0 |
|---|---|
| classification | TLP:CLEAR |
Tags:FILE
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