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Tag: apt

Operation Hanoi Thief: Threat Actor targets Vietnamese IT professionals and recruitment teams.

Operation Hanoi Thief: Threat Actor targets Vietnamese IT professionals and recruitment teams.

Estimated reading time: 10 minutes

Table of Contents Introduction Key Targets. Industries Affected. Geographical Focus. Infection Chain. Initial Findings Looking into the decoy-document Technical Analysis Stage 1 – Malicious LNK Script Stage 2 – Pseudo-Polyglot Trick: All in One. Stage 3 – Final Payload:...
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November 28, 2025

Operation SkyCloak: Tor Campaign targets Military of Russia & Belarus

Operation SkyCloak: Tor Campaign targets Military of Russia & Belarus

Estimated reading time: 7 minutes

Authors: Sathwik Ram Prakki and Kartikkumar Jivani  Contents  Introduction  Key Targets  Industries  Geographical Focus  Infection and Decoys  Technical Analysis  PowerShell Stage  Persistence  Configuration  Infrastructure and Attribution  Conclusion  SEQRITE Protection  IOCs  MITRE ATT&CK  Introduction  SEQRITE Labs has identified a campaign...
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October 31, 2025

Operation CargoTalon : UNG0901 Targets Russian Aerospace & Defense Sector using EAGLET implant.

Operation CargoTalon : UNG0901 Targets Russian Aerospace & Defense Sector using EAGLET implant.

Estimated reading time: 11 minutes

Contents Introduction Initial Findings Infection Chain. Technical Analysis Stage 0 – Malicious Email File. Stage 1 – Malicious LNK file. Stage 2 – Looking into the decoy file. Stage 3 – Malicious EAGLET implant. Hunting and Infrastructure. Infrastructural details....
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July 23, 2025

UNG0002: Regional Threat Operations Tracked Across Multiple Asian Jurisdictions

UNG0002: Regional Threat Operations Tracked Across Multiple Asian Jurisdictions

Estimated reading time: 5 minutes

Overview Seqrite Labs APT-Team has identified and tracked UNG0002 also known as Unknown Group 0002, a bunch of espionage-oriented operations which has been grouped under the same cluster conducting campaigns across multiple Asian jurisdictions including China, Hong Kong, and...
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July 16, 2025

Masslogger Fileless Variant – Spreads via .VBE, Hides in Registry

Masslogger Fileless Variant – Spreads via .VBE, Hides in Registry

Estimated reading time: 9 minutes

During our recent investigation at Seqrite Labs, we identified a sophisticated variant of Masslogger credential stealer malware spreading through .VBE (VBScript Encoded) files. Initially, the variant appeared to be a typical script-based threat, but upon deeper analysis it turned...
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June 18, 2025

Operation DRAGONCLONE: Chinese Telecommunication industry targeted via VELETRIX & VShell malware

Operation DRAGONCLONE: Chinese Telecommunication industry targeted via VELETRIX & VShell malware

Estimated reading time: 10 minutes

Contents Introduction Initial Findings Infection Chain. Technical Analysis Stage 0 – Malicious ZIP File. Stage 1 – Malicious VELETRIX implant. Stage 2 – Malicious V-Shell implant. Hunting and Infrastructure. Attribution Conclusion Seqrite Protection. IOCs MITRE ATT&CK. Authors: Subhajeet Singha...
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June 6, 2025

Advisory: Pahalgam Attack themed decoys used by APT36 to target the Indian Government

Advisory: Pahalgam Attack themed decoys used by APT36 to target the Indian Government

Estimated reading time: 6 minutes

Seqrite Labs APT team has discovered “Pahalgam Terror Attack” themed documents being used by the Pakistan-linked APT group Transparent Tribe (APT36) to target Indian Government and Defense personnel. The campaign involves both credential phishing and deployment of malicious payloads,...
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April 30, 2025

Goodbye HTA, Hello MSI: New TTPs and Clusters of an APT driven by Multi-Platform Attacks

Goodbye HTA, Hello MSI: New TTPs and Clusters of an APT driven by Multi-Platform Attacks

Estimated reading time: 13 minutes

Seqrite Labs APT team has uncovered new tactics of Pakistan-linked SideCopy APT deployed since the last week of December 2024. The group has expanded its scope of targeting beyond Indian government, defence, maritime sectors, and university students to now...
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April 8, 2025

Kimsuky: A Continuous Threat to South Korea with Deceptive Tactics

Kimsuky: A Continuous Threat to South Korea with Deceptive Tactics

Estimated reading time: 8 minutes

Table of Contents: Introduction Threat Profile Infection Chain Campaign-1 Analysis of Decoy: Technical Analysis Fingerprint of ROKRAT’s Malware Campaign-2 Analysis of Decoy Technical analysis Detailed analysis of Decoded tony31.dat Conclusion Seqrite Protections MITRE Att&ck: IoCs Introduction: Security researchers at...
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April 4, 2025

Operation HollowQuill: Malware delivered into Russian R&D Networks via Research Decoy PDFs

Operation HollowQuill: Malware delivered into Russian R&D Networks via Research Decoy PDFs

Estimated reading time: 10 minutes

Contents Introduction Key Targets Industries Affected Geographical Focus Infection Chain Initial Findings Looking into the decoy-document Technical Analysis Stage 1 – Malicious RAR File Stage 2 – Malicious .NET malware-dropper Stage 3 – Malicious Golang Shellcode loader Stage 4...
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March 31, 2025
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