{ "family": "wswhacker", "sample_count": 1, "category": "trojan", "description": "

Executive Summary

\nWswhacker is a classification assigned to a specific HackTool and dedicated Password Stealer. It is engineered to aggressively extract sensitive authentication data from a compromised Windows workstation, targeting saved credentials in web browsers, local email clients, and FTP software, before silently exfiltrating this intelligence to a remote attacker.\n\n

Infection Vector and Technical Capabilities

\nTools like Wswhacker are rarely distributed via automated exploit kits. They are typically deployed manually by a threat actor who has already gained initial access (e.g., via compromised RDP credentials or a reverse shell), or they are bundled within socially engineered, trojanized software packages on file-sharing sites.\n\nOnce executed, Wswhacker is designed for rapid, noisy data extraction:\n\n\n

Threat Assessment

\nA Wswhacker infection is a critical data breach and a severe indicator of lateral movement capabilities. The immediate theft of local administrator credentials or VPN passwords can lead directly to full domain compromise and massive data exfiltration.\n\n

Incident Response and Remediation

\n", "cta": "Published by the SystemHelpdesk team.", "aliases": [ "HackTool.Wswhacker", "Trojan.PWS.Wswhacker", "Win32/Wswhacker" ], "enrichment_level": "expert-seo", "faq": [ { "@type": "Question", "name": "What is Wswhacker and what threat category does it belong to?", "acceptedAnswer": { "@type": "Answer", "text": "Wswhacker is classified as a Trojan. Documented across security telemetry, it is engineered to execute unauthorized operations, establish persistent footholds on target endpoints, and facilitate malicious campaigns targeting enterprise and individual environments." } }, { "@type": "Question", "name": "How does Wswhacker establish persistence and evade defensive controls?", "acceptedAnswer": { "@type": "Answer", "text": "Wswhacker typically establishes persistence through registry run keys, scheduled tasks, or service installations, while evading signature-based antivirus solutions through code obfuscation, memory injection, or anti-analysis sandbox checks." } }, { "@type": "Question", "name": "What are the essential incident response steps for mitigating a Wswhacker compromise?", "acceptedAnswer": { "@type": "Answer", "text": "Security teams responding to Wswhacker should immediately isolate affected endpoints from the network, perform memory triage to capture volatile forensic artifacts, audit registry and startup persistence mechanisms, revoke exposed user credentials, and restore systems from verified, clean backups." } }, { "@type": "Question", "name": "What secondary payloads and staging behaviors are commonly associated with HackTool.Wswhacker?", "acceptedAnswer": { "@type": "Answer", "text": "HackTool.Wswhacker frequently operates as a loader or dropper designed to establish a foothold before downloading and executing secondary high-impact malware payloads. Depending on the threat actor's objectives, these dropped modules can range from ransomware and banking injects to modular infostealers and remote management backdoors." } }, { "@type": "Question", "name": "How can security operations teams effectively detect and hunt for HackTool.Wswhacker across enterprise endpoints?", "acceptedAnswer": { "@type": "Answer", "text": "Defenders should hunt for HackTool.Wswhacker by deploying behavioral endpoint detection and response (EDR) rules that monitor suspicious process spawning (such as cmd.exe or powershell.exe spawned from office documents or temporary directories), anomalous outbound network connections from non-browser binaries, and unauthorized modifications to Windows Run keys and scheduled task registries." } } ], "faq_count": 5, "mitre_attack": [ "T1003", "T1552.001", "T1555.003", "T1048" ], "cisa_advisory": null, "last_updated": "2026-10-15", "type": "HackTool / Info-Stealer", "target_industries": [ "Global / Opportunistic" ], "motivation": "Opportunistic", "threat_actors": [ "Unknown / Cybercriminal" ], "target_geographies": [ "Global" ], "attack_stage": [ "execution", "persistence" ], "ecosystem": [ "windows_pe" ], "is_emerging": false, "mitre_attack_detail": [ { "id": "T1003", "name": "OS Credential Dumping (Built-in Mimikatz integration)", "tactic": "Credential Access" }, { "id": "T1552.001", "name": "Credentials In Files (Harvesting passwords and wallets from local storage)", "tactic": "Credential Access" }, { "id": "T1555.003", "name": "Credentials from Web Browsers", "tactic": "Unknown" }, { "id": "T1048", "name": "Exfiltration Over Alternative Protocol", "tactic": "Exfiltration" } ], "containment_steps": [ "Sever network connectivity for the flagged endpoint to terminate persistent command-and-control (C2) communication channels and stop Wswhacker from retrieving secondary stage payloads.", "Capture process memory triage to detect and terminate malicious threads injected by Wswhacker into legitimate system processes such as explorer.exe or svchost.exe.", "Audit Windows Registry Run keys (HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Run) and Task Scheduler entries to locate and purge Wswhacker persistence hooks.", "Deploy updated enterprise EDR detection signatures and conduct an out-of-band endpoint scan to isolate dropped binaries and staged payloads.", "Rotate all credentials, domain user passwords, and session cookies active on the system during the Wswhacker execution timeframe." ], "what_to_avoid": [ "Do not assume the incident is resolved simply because an antivirus tool removed the initial Wswhacker dropper; always verify that secondary payloads and persistence hooks have been eradicated.", "Avoid logging in with Domain Admin or privileged credentials on a machine suspected of running Wswhacker until memory triage is complete.", "Do not delay host isolation; automated lateral movement and credential dumping can occur within minutes of initial execution." ], "target_platforms": [ "Windows 11", "Windows 10", "Windows 7" ] }