Accellion FTA Zero-Day Attacks Show Ties to Clop Ransomware, FIN11

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Aug 17, 2014
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Researchers have identified a set of threat actors (dubbed UNC2546 and UNC2582) with connections to the FIN11 and the Clop ransomware gang as the cybercriminal group behind the global zero-day attacks on users of the Accellion legacy File Transfer Appliance product.

Multiple Accellion FTA customers, including the Jones Day Law Firm, Kroger and Singtel, have all been attacked by the group, receiving extortion emails threatening to publish stolen data on the “CL0P^_- LEAKS” .onion website, according to an investigation from Accellion and FireEye Mandiant. Around 100 companies have been victims of the attack, analysts found, with around 25 suffering “significant data theft.” No ransomware was used in the attacks.

“Notably, the number of victims on the “CL0P^_- LEAKS” shaming website has increased in February 2021 with organizations in the United States, Singapore, Canada and the Netherlands recently outed by these threat actors,” according to the Mandiant findings, issued on Monday.
 
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