ThreatNexus
Nation-state APT intelligence
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IndiaSuspectedIndia-linkedEspionageActive 2016 – 2026

DoNot Team

Also known asDoNot · APT-C-35

Summary

South Asia-focused espionage group (APT-C-35) active since at least 2016, which several vendors link to India (Trellix); no government has attributed it. It targets government, foreign-affairs, defence and NGO organisations in South Asia and, increasingly, Europe — in 2025 Trellix documented an intrusion into a European foreign ministry handling South Asian affairs with its exclusive LoptikMod malware. In 2026 it targeted Bangladesh's military and defence personnel with a lure impersonating a Bangladesh Air Force officer: a weaponised RTF using remote-template injection pulls a VBA shellcode loader, chained XOR-encoded downloaders disguised as .ico/.mp3/.doc files, and a DLL implant persisting as a fake OneDrive telemetry task (Cyderes, high confidence); Bangladesh's national CIRT issued an advisory in Aug 2026. Amnesty International (2021) linked its Android spyware used against a Togolese activist to the Indian company Innefu Labs.

Attribution

SuspectedSuspected link: India-linked

No government attribution of the state link

Hedged, circumstantial or press-only reporting; not established.

Sources
  • Trellix (Research, 2025-07-08)
    Several vendors attribute links to India
  • Bangladesh e-GOV CIRT (Government, 2026-08-17)
    Advisory on DoNot activity; names no state

Campaigns 2

CampaignPeriodTargetsSectorsSource
Bangladesh military and defence personnel — Air Force officer lure, RTF remote template → shellcode chain2026BangladeshMilitary, DefenseCyderes (2026-07-15); BGD e-GOV CIRT advisory (2026-08-17)
European foreign affairs ministry — LoptikMod2025 – 2025-07EUDiplomatic, GovernmentTrellix (2025-07-08) — activity dates not stated; reported July 2025 (start is the publication year)

Newest first. ASSESSED: tied to the actor with hedging or through an alias. CLAIMED: an allegation no independent source confirms.

MITRE ATT&CK techniques 4

Initial Access1T1566.001Spearphishing Attachment
Execution1T1053.005Scheduled Task
Stealth2T1221Template InjectionT1036.004Masquerade Task or Service

Malware and tools 2

NameDescriptionPlatform
LoptikModBackdoor (exclusive to DoNot since 2018)Windows
ejtest.dllSecond-stage module retrieved from live C2 (2026)Windows

Infrastructure patterns

  • Server-side geofencing: payloads served only to victims in the target region (Cyderes, 2026; BGD e-GOV CIRT, 2026)

Reporting and advisories 3