Skip to content
yararules.org
Menu

YARA · NCSC (via Open-Source-YARA-rules)

NCSC_Sparrowdoor_Xor

Highlights XOR routines in SparrowDoor. No MZ/PE match as the backdoor has no header. Targeting in memory.

MalwareSparrow DoorNCSC (via Open-Source-YARA-rules)No licence (all rights reserved)Compiles with YARA-X
Author
NCSC
Date
2022-02-28
Modified
2022-07-06
Score / Quality
75 / 80

What this rule detects

Highlights XOR routines in SparrowDoor. No MZ/PE match as the backdoor has no header. Targeting in memory.

Associated malware family: Sparrow Door.

It defines 3 patterns (0 text, 3 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

Rule text not reproduced

This rule comes from NCSC (via Open-Source-YARA-rules), 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

Sample hashes

Hashes of samples the author lists in the rule's meta (look them up in your threat-intelligence platform).

  • c1890a6447c991880467b86a013dbeaa66cc615f

Licence & attribution

Author: NCSC

Source repository: NCSC (via Open-Source-YARA-rules) @ ec0056f767

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: 9c07feea-91fc-528e-91ac-14d09fa1fc10

Related rules

More Sparrow Door rules