Sidewinder G0121
Also known as T-APT-04, Rattlesnake.
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.
Documented targeting: Government, Defense
Methodology
Relevance is a match on your industry sector and technology stack against the MITRE ATT&CK v19.1 group graph (174 groups, 821 software families, 56 campaigns). It is computed deterministically from that data, with no language model in the request path. It is a relevance match, not threat-intelligence probability data: it tells you which documented actors and techniques are worth emulating for an org like yours, not a forecast that any specific group will act.
TurboPentest can autonomously exercise 0 of 30 of this actor's documented techniques today (0%). 9 are out of scope for automated testing (social engineering, denial of service, physical).
+16 coming soonmore unlock with our internal pentesting agent, currently in private beta.
These counts are computed from the vendored MITRE ATT&CK graph and the published coverage map, and are reproducible from source.
Known software
Emulate Sidewinder. Audit-Ready pentest, $99.
Finds nothing? Your next pentest is free. If a pentest surfaces zero actionable findings, we credit you a free re-pentest. Once per target; does not apply to retests or Recon. You always walk away with real findings or a free redo.
Launch this pentestFrequently asked questions
Who is Sidewinder (G0121)?
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.
What sectors does Sidewinder target?
Based on MITRE ATT&CK, Sidewinder has been observed targeting Government, Defense.
Can TurboPentest test for Sidewinder?
TurboPentest can autonomously exercise 0 of 30 of this actor's documented techniques today. 16 more need internal or assumed-breach access (the Adversarial-Depth tier), and the rest are out of scope for automated testing.
What does it cost to emulate Sidewinder?
An Audit-Ready pentest starts at $99 per target. If it surfaces zero actionable findings, your next pentest is free.
Reviewed by
Michel Chamberland, Founder & CEO of IntegSec. CISSP, OSCP, OSCE, with 20+ years in offensive security, alumni of IBM X-Force Red and Trustwave SpiderLabs.
Last reviewed July 30, 2026.