Malware - Cybersec Sentinel

Malware

A collection of 154 posts

GootLoader New Evasion Methods Target Search Driven Workflows

GootLoader New Evasion Methods Target Search Driven Workflows

Threat Group – UNC2565 (also tracked as Storm-0494) Threat Type – Malware Loader and Initial Access Platform Exploited Vulnerabilities – No specific CVE confirmed. Campaign relies on SEO poisoning, compromised WordPress sites, archive format inconsistencies, Windows Script Host execution, and legacy filename behaviour. Malware Used – GootLoader, GootBot, secondary payloads such as Cobalt Strike

Atroposia RAT Redefines Remote Access Malware-as-a-Service

Atroposia RAT Redefines Remote Access Malware-as-a-Service

Threat Group – Unknown actor likely a financially motivated Malware as a Service operator Threat Type – Remote Access Trojan and Malware as a Service Exploited Vulnerabilities – No specific CVEs publicly linked at time of writing. Built in UAC bypass and a Local Vulnerability Scanner enable dynamic post infection exploitation Malware Used

GlassWorm Self-Propagating Malware Compromises VS Code Extensions

GlassWorm Self-Propagating Malware Compromises VS Code Extensions

Threat Group – Unknown (no confirmed attribution) Threat Type – Self-propagating software supply chain malware targeting VS Code and OpenVSX ecosystems Exploited Vulnerabilities – Abuse of trusted publisher credentials and the automated extension update pipeline; no CVE assigned for the platform itself Malware Used – GlassWorm loader and final-stage ZOMBI module (RAT with SOCKS

BatShadow launches Vampire Bot in fake job campaigns

BatShadow launches Vampire Bot in fake job campaigns

Threat Group – BatShadow Group Threat Type – Multi-stage info-stealer and remote access bot Exploited Vulnerabilities – Social engineering, Windows default “hide known file extensions,” LNK-launched encoded PowerShell, abuse of legitimate remote access software for persistence Malware Used – Vampire Bot (Go-compiled) Threat Score – 7.6 🔴 High — Multi-stage chain with LNK→PowerShell execution, behaviour-evasive

NET-STAR Backdoor Exploits IIS Modules for Persistent Access

NET-STAR Backdoor Exploits IIS Modules for Persistent Access

Threat Group – Phantom Taurus (China-linked APT) Threat Type – In-process web server backdoor for IIS (.NET managed and native module tradecraft) Exploited Vulnerabilities – ViewState abuse via compromised ASP.NET machineKey, insecure file write to application bin directory, misconfigured IIS extensibility, weak CI/CD controls, stolen deployment credentials (no CVEs assigned at

LockBit 5.0 Variant Expands Attacks on Windows Linux and Virtual Infrastructure

LockBit 5.0 Variant Expands Attacks on Windows Linux and Virtual Infrastructure

Threat Group – LockBit operators Threat Type – Ransomware as a Service Exploited Vulnerabilities – Exposed remote access services, unpatched internet facing infrastructure, valid credential reuse, weak virtualisation hardening Malware Used – LockBit 5.0 Windows Linux and ESXi variants Threat Score – 7.5 🔴 High – Cross platform impact with ESXi targeting, rapid encryption, and

COLDRIVER targets policy and critical infrastructure using BAITSWITCH-SIMPLEFIX chain

COLDRIVER targets policy and critical infrastructure using BAITSWITCH-SIMPLEFIX chain

Threat Group – COLDRIVER Threat Type – Espionage malware and social engineering Exploited Vulnerabilities – User execution via ClickFix lure, abuse of rundll32, script execution and registry-based persistence (no CVEs assigned) Malware Used – BAITSWITCH downloader, SIMPLEFIX PowerShell backdoor, LOSTKEYS VBS payload, SPICA backdoor Threat Score – 8.2 🔴 High Last Threat Observation – 25 September

Sindoor Dropper Phishing Exploits Linux Desktop Files for Persistent Remote Control

Sindoor Dropper Phishing Exploits Linux Desktop Files for Persistent Remote Control

Threat Group: Transparent Tribe / APT36 / Mythic Leopard / G0134 Threat Type: Targeted phishing dropper, Linux desktop shortcut abuse, remote administration tool deployment, cyber espionage Exploited Vulnerabilities: No public CVE exploitation confirmed. Abuse of Linux .desktop launcher behaviour, user execution, weak attachment controls, and trusted cloud storage delivery. Malware Used: Sindoor Dropper