D
CyberIndia

Sidewinder

Suspected state-linked cyber threat groupTrackedPending verification

Also known as: T-APT-04, Rattlesnake

CyberIND
Identification silhouette. Not drawn to scale between entries.
Fact cardConfidence · Source
System
TypeSuspected state-linked cyber threat group
Alternative designationsT-APT-04, Rattlesnake
ProliferationOrigin country only
Active since2012At least 2012Med[1]
MITRE ATT&CK IDG0121High[1]
Capabilities
ATT&CK techniques used30ATT&CK v20.1High[1]
Malware and toolsKoadic1 malware and tool entries linked in ATT&CKHigh[1]
Attribution and activity
Attributed sponsorSuspected Indian groupMed[1]
TargetsThey have been observed targeting government, military, and business entities throughout Asia, primarily focusing on Pakistan, China, Nepal, and Afghanistan.Med[1]
Notes
Sidewinder is a suspected Indian threat actor group that has been active since at least 2012. They have been observed targeting government, military, and business entities throughout Asia, primarily focusing on Pakistan, China, Nepal, and Afghanistan. Description adapted from MITRE ATT&CK®, © The MITRE Corporation, used under the ATT&CK Terms of Use.
Summary

Sidewinder is a suspected Indian threat actor group that has been active since at least 2012. They have been observed targeting government, military, and business entities throughout Asia, primarily focusing on Pakistan, China, Nepal, and Afghanistan.

Draft entry. Values come from the cited public sources and are awaiting editor verification.
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Operators
India
Sources
  1. Sidewinder, Group G0121, MITRE ATT&CK
    Published/updated 2026-07-31 · Tier 2 · checked 2026-11-08
Change log
  • 2026-11-08 Entry created from MITRE ATT&CK Enterprise v20.1 (group G0121)