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Malware with legit company names in metadata

Medium
Published: Mon Jul 02 2018 (07/02/2018, 00:00:00 UTC)
Source: CIRCL
Vendor/Project: misp-galaxy
Product: rat

Description

Malware with legit company names in metadata

AI-Powered Analysis

AILast updated: 07/02/2025, 11:54:47 UTC

Technical Analysis

This threat involves malware samples that embed legitimate company names within their metadata to evade detection and attribution. The malware types referenced include Remote Access Trojans (RATs) such as NanoCore and njRAT, as well as ransomware like Razy. These malware families are known for providing attackers with unauthorized remote control over infected systems, enabling data theft, espionage, or deployment of additional payloads such as ransomware. The use of legitimate company names in metadata is a form of obfuscation intended to mislead analysts and automated detection tools, complicating attribution and forensic investigations. Although no specific affected versions or exploits in the wild are documented, the presence of multiple RAT and ransomware tags indicates a broad threat landscape where attackers leverage these tools for various malicious objectives. The threat level and analysis scores of 2 suggest moderate confidence in the malware’s capabilities and impact. The absence of patch links implies that mitigation relies on detection and prevention rather than software updates. Overall, this threat highlights the ongoing challenge of malware authors employing sophisticated evasion techniques to bypass security controls and complicate incident response.

Potential Impact

For European organizations, this malware poses significant risks primarily through unauthorized remote access and potential ransomware deployment. Compromise by RATs like NanoCore or njRAT can lead to data exfiltration, intellectual property theft, and persistent network presence, undermining confidentiality and integrity. The inclusion of ransomware capabilities (Razy) elevates the risk to availability, as critical systems and data may be encrypted and held hostage, disrupting business operations. The obfuscation tactic of embedding legitimate company names in metadata may delay detection and response, increasing dwell time and potential damage. European entities in sectors such as finance, manufacturing, healthcare, and critical infrastructure are particularly vulnerable due to the high value of their data and operational continuity requirements. Additionally, the medium severity rating suggests that while exploitation may not be trivial, successful compromise can have meaningful operational and reputational consequences.

Mitigation Recommendations

European organizations should implement multi-layered defenses tailored to detect and prevent RAT and ransomware infections that use metadata obfuscation. Specific recommendations include: 1) Employ advanced endpoint detection and response (EDR) solutions capable of behavioral analysis to identify suspicious remote access activities and anomalous metadata patterns rather than relying solely on signature-based detection. 2) Conduct regular threat hunting exercises focusing on metadata anomalies and unusual network connections to identify stealthy malware. 3) Enforce strict application whitelisting and least privilege principles to limit execution of unauthorized binaries. 4) Implement network segmentation to contain potential lateral movement by compromised hosts. 5) Maintain robust backup and recovery procedures isolated from the network to mitigate ransomware impact. 6) Train security teams to recognize evasion techniques such as metadata manipulation and incorporate this knowledge into incident response playbooks. 7) Monitor threat intelligence feeds for updates on these malware families and adjust detection rules accordingly. These targeted measures go beyond generic advice by addressing the specific evasion technique and malware types involved.

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Technical Details

Threat Level
2
Analysis
2
Original Timestamp
1530552872

Threat ID: 682acdbdbbaf20d303f0be59

Added to database: 5/19/2025, 6:20:45 AM

Last enriched: 7/2/2025, 11:54:47 AM

Last updated: 8/11/2025, 10:30:54 AM

Views: 15

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