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Technical Archive

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

Unveiling Swan Vector APT Targeting Taiwan and Japan with varied DLL Implants

Unveiling Swan Vector APT Targeting Taiwan and Japan with varied DLL Implants

Estimated reading time: 14 minutes

Content Introduction Initial Findings. Looking into the decoy. Infection Chain. Technical Analysis. Stage 1 – Malicious LNK Script. Stage 2 – Malicious Pterois Implant. Stage 3 – Malicious Isurus Implant. Stage 4 – Malicious Cobalt Strike Shellcode. Infrastructure and...
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May 12, 2025

Security Flaw in Yelp Help Viewer (CVE-2025-3155)

Security Flaw in Yelp Help Viewer (CVE-2025-3155)

Estimated reading time: 4 minutes

Yelp is the default help browser in GNOME-based Linux distributions, including widely used systems such as Ubuntu, Fedora and Debian etc. It is responsible for rendering help documentation written in the Mallard XML format and integrates tightly with the...
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May 12, 2025

Beware! Fake ‘NextGen mParivahan’ Malware Returns with Enhanced Stealth and Data Theft

Beware! Fake ‘NextGen mParivahan’ Malware Returns with Enhanced Stealth and Data Theft

Estimated reading time: 8 minutes

Cybercriminals continually refine their tactics, making Android malware more insidious and challenging to detect. A new variant of the fake NextGen mParivahan malware has emerged, following its predecessor’s deceptive strategies but introducing significant enhancements. Previously, attackers exploited the government’s...
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April 9, 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

SnakeKeylogger: A Multistage Info Stealer Malware Campaign

SnakeKeylogger: A Multistage Info Stealer Malware Campaign

Estimated reading time: 6 minutes

Info-stealer malware has become a growing threat, with attackers constantly refining their techniques to evade detection. Among these threats, SnakeKeylogger has emerged as one of the highly active credential-stealing malware, targeting individuals and businesses. Known for its multi-stage infection...
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March 25, 2025

New Steganographic Campaign Distributing Multiple Malware

New Steganographic Campaign Distributing Multiple Malware

Estimated reading time: 7 minutes

Recently we have observed multiple stealer malware such as Remcos, DcRAT,AgentTesla, VIPKeyLogger, etc. distributed through a steganographic campaign.  On tracing the roots, the campaign has been around for a while but has not been active since long. What makes...
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March 17, 2025

Beyond Passwords: Is Your System Truly Secure?

Beyond Passwords: Is Your System Truly Secure?

Estimated reading time: 3 minutes

The cybersecurity landscape is constantly evolving, with traditional methods of securing user accounts—such as passwords—proving increasingly inadequate against the growing sophistication of cyberattacks. In response, authentication systems that go Beyond Passwords, i.e., password-less, have emerged as a promising solution....
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March 12, 2025

Fake CAPTCHA Lures Victims: Lumma Stealer Abuses Clipboard and PowerShell

Fake CAPTCHA Lures Victims: Lumma Stealer Abuses Clipboard and PowerShell

Estimated reading time: 6 minutes

Introduction: We recently identified a new malware campaign using fake CAPTCHA pages to deliver Lumma Stealer, an infostealer operating under the malware-as-a-service (MaaS) model, first discovered in 2022. In previous campaigns, including those in mid-2024, attackers used ClickFix a...
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February 25, 2025

XELERA Ransomware Campaign: Fake Food Corporation of India Job Offers Targeting Tech Aspirants

XELERA Ransomware Campaign: Fake Food Corporation of India Job Offers Targeting Tech Aspirants

Estimated reading time: 10 minutes

Table of Contents Introduction Initial Findings. Infection Chain. Technical Analysis. Initial Infection – Malicious Document. Second Stage – Malicious PyInstaller Executable. Final Stage – Malicious Python Scripts. Discord Bot Features. Ransomware Features. Conclusion Seqrite Protection. IOCs MITRE ATT&CK. Authors...
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February 12, 2025
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