Security News > 2022 > August > Ransomware gangs move to 'callback' social engineering attacks
At least three groups split from the Conti ransomware operation have adopted BazarCall phishing tactics as the primary method to gain initial access to a victim's network.
This allows the threat actors to deploy highly-targeted attacks that are more difficult to detect and stop because of the social engineering component.
Currently, there is evidence of three groups, all part of the former Conti ransomware operation, that used BazarCall or a version of those tactics: Silent Ransom Group, Quantum, and Roy/Zeon.
Starting April 2022, as Conti was shutting down, the BazarCall operators formed their own extortion group called Silent Ransom Group.
According to information from AdvIntel, Quantum ransomware operators were the main Conti subdivision, a group of highly-skilled hackers responsible for breaching the Costa Rica government.
Roy/Zeon is also the most adept at social engineering and very selective with their targets, choosing companies with a high annual revenue or from sensitive industries.
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