Clop is a ransomware family covered through reported incidents, technical analysis, disruption efforts, and defensive guidance for organizations.
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Background for this topic.
Clop is a ransomware family used by a criminal group that encrypts files on compromised systems and demands cryptocurrency payments for decryption keys. It is known for combining file encryption with data theft, threatening to publicly release stolen information if victims do not pay. Clop operators often exploit unpatched software vulnerabilities and exposed remote access services to gain entry, then move laterally within networks to maximize impact.
Defending against Clop requires timely patching of software and network devices, strict access controls, and segmentation to limit attacker movement. Monitoring for unusual data transfers can help detect exfiltration attempts linked to Clop’s double extortion tactics. Multi-factor authentication and user training reduce risks from credential theft and phishing, common initial vectors for this ransomware. Understanding Clop’s methods supports targeted detection and containment strategies in enterprise environments.
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A University of Phoenix data breach affecting nearly 3.5 million individuals has been claimed by the Clop ransomware collective
Barts Health NHS Trust has revealed itself to be the latest victim of Cl0p’s Oracle EBS campaign
GlobalLogic has notified 10,000 employees their data was stolen in the Oracle EBS campaign
GTIG highlighted indicators that Clop is behind the extortion campaign targeting Oracle EBS instances, with its activity likely beginning as early as August 9
A critical Oracle E-Business Suite vulnerability is being actively exploited by the Clop ransomware group
The initial investigation shows early signs of links with the FIN11 and Clop cyber extortion groups
Barracuda observed threat actors impersonating the Clop ransomware group via email to extort payments, claiming to have exfiltrated sensitive data
Lace Tempest looks to spread Clop malware to victims
The data breach is suspected to be linked to the Clop MOVEit hack
NCC Group researchers observed 502 ransomware attacks in July 2023, with a large proportion made up of Clop’s continued exploitation of MOVEit
Latest innovation designed to speed up download process
Coveware claims small number of victims paid very high ransoms
Scores of victims hit by MOVEit campaign
David Wallace, a senior threat intelligence analyst at Sophos, took a deep dive into Clop’s background and intrusion techniques
State department wants information on Clop ransomware actors
Progress Software scrambles to release a new security update
Boots, BA, the BBC and more have data compromised
Some attacks also linked to LockBit deployment
The vulnerability has a CVSS score of 7.2 and was exploited against several companies in the US
Microsoft said the worm had alternate infection methods beyond its original USB drive spread