Skip to content

YARA · SecuInfra Falcon Team

SECUINFRA_OBFUS_Javascript_Wscript_Hex_Strings_Usage

Detects the frequent usage of Wscript to get an hex encoded string from an array and interpret it. Used by e.g WSHRAT

MalwareWSHRATSecuInfra Falcon TeamNo licence (all rights reserved)Compiles with YARA-X
Author
SECUINFRA Falcon Team
Date
2022-12-02
Modified
2022-02-13
Score / Quality
75 / 70

What this rule detects

Detects the frequent usage of Wscript to get an hex encoded string from an array and interpret it. Used by e.g WSHRAT

Associated malware family: WSHRAT.

It defines 5 patterns (5 text, 0 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

Rule text not reproduced

This rule comes from SecuInfra Falcon Team, which does not grant a licence to redistribute its rules (No licence (all rights reserved)). We show its metadata only. Read the original rule upstream:

View the rule on GitHubOpen the repository

References

Licence & attribution

Author: SECUINFRA Falcon Team

Source repository: SecuInfra Falcon Team @ 2d7c66d7d1

Licence: No licence (all rights reserved) (repository licence)

Original rule

Mirrored via YARA Forge 20260927, which prefixes rule names with the source and adds normalised meta fields.

Rule id: dd55753e-4f7b-56be-a6d4-66f1d7dc8747

More WSHRAT rules