{ "family": "kradword", "sample_count": 1, "category": "ransomware", "description": "

Executive Summary

\nKradword is a malicious Trojan specifically engineered to function as an Information Stealer and Keylogger. Unlike broad-spectrum botnet malware, Kradword is a targeted surveillance tool. Its primary objective is to silently monitor user activity, record keystrokes, and exfiltrate sensitive data—specifically targeting login credentials, financial information, and proprietary communications.\n\n

Infection Vector and Technical Capabilities

\nKradword is typically distributed via targeted spear-phishing campaigns (business email compromise) containing weaponized attachments, or it is dropped as a secondary payload by an initial access broker who has already compromised the network perimeter.\n\nOnce executed, Kradword employs stealthy data harvesting techniques:\n\n\n

Threat Assessment

\nA Kradword infection is a critical security incident. The immediate risk is the catastrophic compromise of user credentials. Stolen corporate VPN or RDP credentials provide the attacker with direct, authenticated access to the internal network, bypassing external firewalls and often leading to severe data breaches or ransomware deployment.\n\n

Incident Response and Remediation

\n", "cta": "Published by the SystemHelpdesk team.", "aliases": [ "Trojan.Kradword", "Keylogger.Kradword", "Win32/Spy.Kradword" ], "enrichment_level": "expert-seo", "faq": [ { "@type": "Question", "name": "What is Kradword and what threat category does it belong to?", "acceptedAnswer": { "@type": "Answer", "text": "Kradword is classified as a Ransomware. 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 Kradword establish persistence and evade defensive controls?", "acceptedAnswer": { "@type": "Answer", "text": "Kradword 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 Kradword compromise?", "acceptedAnswer": { "@type": "Answer", "text": "Security teams responding to Kradword 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 cryptographic algorithms and file targeting techniques does Trojan.Kradword employ during execution?", "acceptedAnswer": { "@type": "Answer", "text": "Trojan.Kradword typically leverages hybrid cryptographic architectures combining symmetric stream or block ciphers (such as AES-256 or ChaCha20) for rapid file encryption with asymmetric algorithms (such as RSA-2048 or Curve25519) to securely protect the session keys. It aggressively targets sensitive file extensions including corporate documents, databases, virtual disks, and backups while systematically executing commands to delete Volume Shadow Copies (vssadmin delete shadows /all /quiet) and disable system recovery options." } }, { "@type": "Question", "name": "Are decryptors available for Trojan.Kradword, and what is the recommended recovery procedure?", "acceptedAnswer": { "@type": "Answer", "text": "Decryption availability for Trojan.Kradword depends on whether security researchers or law enforcement (such as the No More Ransom initiative) have recovered the master private keys or discovered flaws in its key generation routines. Victims should never pay the extortion demand, as payment fuels criminal operations without guaranteeing file restoration. The recommended recovery procedure entails isolating infected hosts, conducting forensic disk imaging, identifying the root access vector, and restoring validated systems from immutable offline backups." } } ], "faq_count": 5, "mitre_attack": [ "T1056.001", "T1115", "T1552.001" ], "cisa_advisory": null, "last_updated": "2026-10-15", "type": "Trojan / Keylogger", "target_industries": [ "Healthcare", "Critical Infrastructure", "Enterprise" ], "motivation": "Financial Extortion", "threat_actors": [ "Unknown / Cybercriminal" ], "target_geographies": [ "Global" ], "attack_stage": [ "defense_evasion", "impact" ], "ecosystem": [ "windows_pe" ], "is_emerging": false, "mitre_attack_detail": [ { "id": "T1056.001", "name": "Keylogging", "tactic": "Credential Access" }, { "id": "T1115", "name": "Clipboard Data", "tactic": "Collection" }, { "id": "T1552.001", "name": "Credentials In Files (Harvesting passwords and wallets from local storage)", "tactic": "Credential Access" } ], "containment_steps": [ "Immediately isolate affected host(s) from the internal network (disconnect physical Ethernet and disable Wi-Fi/Bluetooth) to prevent Kradword from spreading laterally or encrypting network-attached storage (NAS) and shared SMB volumes.", "Preserve volatile system memory (RAM capture) on a representative endpoint before attempting a reboot or power-down, as Kradword symmetric encryption keys or uncompiled payload components may still reside in memory.", "Audit process execution logs and terminate active scripting interpreters (e.g. PowerShell, CMD, WScript) or commands executing 'vssadmin.exe delete shadows' or 'wbadmin' used by Kradword to inhibit recovery.", "Investigate the initial compromise vector (such as exposed RDP instances, spearphishing attachments, or vulnerable edge gateways) and enforce an immediate credential reset for all compromised Active Directory accounts.", "Restore critical assets and databases exclusively from verified, air-gapped, or immutable offline backups once the Kradword binary and related persistence hooks are eradicated." ], "what_to_avoid": [ "Do not restart or power cycle infected systems prematurely; doing so destroys volatile RAM encryption keys and may trigger bootloader locking logic embedded in Kradword.", "Avoid negotiating or paying the extortion demand without prior forensic evaluation and consultation with incident response specialists, as payment does not guarantee data recovery.", "Do not connect clean backup drives or external storage to the affected network until Kradword eradication is completely verified." ], "target_platforms": [ "Windows 11", "Windows 10", "Windows Server 2022", "Windows Server 2019" ] }