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Share Researchers observed a new ransomware variant, called FiveHands, being deployed by an “aggressive” financially motivated threat group in January and February. According to a FireEye Mandiant report, the UNC2447 group exploited a critical SonicWall vulnerability (CVE-2021-20016) prior to a patch being available. The group leveraged this exploit as a foothold in order to deploy the previously-discovered SombRAT malware, as well as FiveHands. “UNC2447 monetizes intrusions by extorting their victims first with FiveHands ransomware followed by aggressively applying pressure through t...

It’s the second time SonicWall has been hit with an attack leveraging previously unknown weaknesses in their security products this year.

SonicWall Patches 3 Zero-Day Flaws Compliance Twitter SonicWall's headquarters in Milpitas, California (Photo: Arc Tec Inc.) SonicWall has patched three zero-day vulnerabilities in the hosted and on-premises versions of its Email Security product after attackers began exploiting them last month. FireEye Mandiant, which uncovered the flaws, says it has seen attackers using the three vulnerabilities to place web shells, or remote access scripts, on systems. That access can then be used to access an organization's email, FireEye says in a blog post. The attackers can also use access to pivot f...

By Eduard Kovacs on April 21, 2021 SonicWall’s Email Security product is affected by three vulnerabilities that have been exploited in attacks. It took the vendor roughly two weeks to start releasing patches, but a public warning about active exploitation came only 25 days after it learned about the attacks. FireEye, whose incident response unit Mandiant spotted the vulnerabilities and their active exploitation in March, warned on Tuesday that a threat actor had been observed exploiting the SonicWall Email Security flaws to install backdoors, access emails and files, and move laterally in ...

GovInfoSecurity Insights from industry experts SonicWall Was Hacked. Was It Also Extorted? Hacker Claims SonicWall Paid Ransom; SonicWall Stays Silent Jeremy Kirk ( Twitter Inside SonicWall's headquarters in Milpitas, California. (Photo: Arctecinc) Cybersecurity companies advise their clients not to pay ransoms for good reasons: Pay once and the attackers may come back with their hand out again. It also promotes a cybercrime business model: When one pays, it's likely that other victi...