DONOT TEAM
APT-C-35
YTY FRAMEWORK
TANZEEM
APTIndiaEspionageOctober 11, 2026•9 min read

DoNot Team: The India-Nexus Spies Watching South Asia

A long-running, suspected India-nexus group that spear-phishes South Asian governments and militaries on Windows — and surveils individuals on Android.

Scroll

DoNot Team (MITRE ATT&CK G0129; also APT-C-35, SectorE02, Viceroy Tiger, Origami Elephant) is a suspected India-nexus espionage group active since at least 2016. Attribution is medium confidence and partly circumstantial: Amnesty International linked supporting infrastructure to the Indian firm Innefu Labs, raising a possible hack-for-hire angle, and a Pakistani government advisory describes the group as Indian state-sponsored. There is no official Indian government confirmation.

Attribution

Suspected India-nexus, assessed at medium confidence. ESET and Kaspersky describe targeting and tooling consistent with India-aligned interests but are careful about naming a sponsor. The Amnesty International / Innefu Labs link is the strongest public thread and points to a possible spyware-vendor or hack-for-hire relationship.

Targeting

Government, military, foreign-affairs ministries, diplomatic entities and embassies, with primary victims in South Asia — Pakistan, Afghanistan, Sri Lanka, Bangladesh and Nepal — plus targets of interest elsewhere. The group works both Windows and Android, including mobile surveillance of specific individuals.

Notable Campaigns

Malware & Tooling

The yty framework (aka Jaca), the earlier EHDevel framework, the Firebird .NET backdoor and CSVtyrei downloader, and Android spyware families including Tanzeem. Delivery is via malicious RTF/Office documents and rogue Android apps.

MITRE ATT&CK Mapping

Note

Official group G0129; techniques below are mapped from reported behaviour.

TacticTechniqueUsage
Initial AccessT1566.001 Spearphishing AttachmentWeaponised documents
ExecutionT1204.002 Malicious FileDocument chains
PersistenceT1053 Scheduled Task/JobLoader persistence
Credential AccessT1555.003 Credentials from Browsersyty stealer modules
Command and ControlT1071.001 Web ProtocolsHTTP(S) C2

Detection & Mitigation

Defend Against Targeted Espionage

Mjolnir Security helps government, diplomatic and enterprise targets detect espionage tradecraft.

Managed Detection & ResponseEmail SecurityMobile SecurityIncident ResponseThreat Hunting
  • Managed Detection and Response Monitoring for document-borne loaders and browser-credential theft.
  • Mobile Threat Defence Detecting Android spyware and malicious app behaviour.
  • 24/7 Incident Response Containment when targeted espionage is suspected. Call +1 833 403 5875.
Written by: Mjolnir Security  |  Published: October 11, 2026