will avast let the crypto locker virus thru

Their victims include utilities providers, government agencies, and organizations that support non-profits and healthcare entities, however, we have not observed them attacking hospitals or entities that provide urgent care. The threat actors behind COLDDRAW ransomware attacks have not shied away from sensitive targets (Figure 1). COLDDRAW operations have impacted dozens of organizations across more than ten countries, including those within critical infrastructure.

In incidents where COLDDRAW was deployed, UNC2596 used a multi-faceted extortion model where data is stolen and leaked on the group's shaming website, in addition to encryption using COLDDRAW ransomware. Beyond commonplace tools, like Cobalt Strike BEACON and NetSupport, UNC2596 has used novel malware, including BURNTCIGAR to disable endpoint protection, WEDGECUT to enumerate active hosts, and the BUGHATCH custom downloader. During intrusions, these threat actors have used webshells to load the TERMITE in-memory dropper with subsequent activity involving multiple backdoors and built-in Windows utilities. UNC2596 is currently the only threat actor tracked by Mandiant that uses COLDDRAW ransomware, which may suggest it’s exclusively used by the group. The content of this blog focuses on UNC2596 activity which has led to the deployment of COLDDRAW ransomware. While public reporting has highlighted CHANITOR campaigns as precursor for these ransomware incidents, Mandiant has also identified the exploitation of Microsoft Exchange vulnerabilities, including ProxyShell and ProxyLogon, as another access point leveraged by UNC2596 likely as early as August 2021. UNC2596, a threat actor that deploys COLDDRAW ransomware, publicly known as Cuba Ransomware, exemplifies this trend.

In 2021, Mandiant observed some threat actors deploying ransomware increasingly shift to exploiting vulnerabilities as an initial infection vector. Create a Free Mandiant Advantage Account.

Will avast let the crypto locker virus thru