Ongoing SonicWall Secure Mobile Access (SMA) Exploitation Campaign using the OVERSTEP Backdoor


Google Threat Intelligence Group (GTIG) has identified an ongoing campaign by a suspected financially-motivated threat actor we track as UNC6148, targeting fully patched end-of-life SonicWall Secure Mobile Access (SMA) 100 series appliances.

GTIG assesses with high confidence that UNC6148 is leveraging credentials and one-time password (OTP) seeds stolen during previous intrusions, allowing them to regain access even after organizations have applied security updates. Evidence for the initial infection vector was limited, as the actor’s malware is designed to selectively remove log entries, hindering forensic investigation; however, it is likely this was through the exploitation of known vulnerabilities.

Read more…
Source: Mandiant/GTG


Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox


Related:

  • TgToxic Malware’s Automated Framework Targets Southeast Asia Android Users

    February 3, 2023

    Trend Micro researchers analyzed an ongoing campaign that has been targeting Android users in Southeast Asia since July 2022. Its goal is to steal victims’ assets from finance and banking applications (such as cryptocurrency wallets, credentials for official bank apps on mobile, and money in deposit), via a banking trojan they named TgToxic (detected by Trend ...

  • Tallahassee Memorial hospital victim of suspected ransomware attack

    February 3, 2023

    Tallahassee Memorial HealthCare is postponing all non-emergency patient procedures as officials manage an Information Technology security issue that occurred late Thursday night, according to a memo from the hospital. The IT security breach is a suspected ransomware attack, according to sources with knowledge of the situation. Read more… Source: Florida Politics  

  • GoAnywhere MFT zero-day vulnerability lets hackers breach servers

    February 3, 2023

    The developers of the GoAnywhere MFT file transfer solution are warning customers of zero-day remote code execution vulnerability on exposed administrator consoles. GoAnywhere is a secure web file transfer solution that allows companies to securely transfer encrypted files with their partners while keeping detailed audit logs of who accessed the files. Read more… Source: Bleeping Computer  

  • New APT34 Malware Targets The Middle East

    February 2, 2023

    On December 2022, Trend Micro researchers identified a suspicious executable (detected by Trend Micro as Trojan.MSIL.REDCAP.AD) that was dropped and executed on multiple machines. The investigation led them to link this attack to advanced persistent threat (APT) group APT34, and the main goal is to steal users’ credentials. Even in case of a password reset ...

  • CISA Releases Six Industrial Control Systems Advisories

    February 2, 2023

    CISA released six Industrial Control Systems (ICS) advisories on February 2, 2023.These advisories provides timely information about current security issues, vulnerabilities, and exploits surrounding ICS. CISA encourages users and administrators to review the newly released ICS advisories for technical details and mitigations: ICSA-23-033-01 Delta Electronics DIAScreen ICSA-23-033-02 Mitsubishi Electric GOT2000 Series and GT SoftGOT2000 ICSA-23-033-03 Baicells Nova Read more… Source: U.S. ...

  • North Korean hackers stole research data in two-month-long breach

    February 2, 2023

    A new cyber espionage campaign dubbed ‘No Pineapple!’ has been attributed to the North Korean Lazarus hacking group, allowing the threat actors to stealthily steal 100GB of data from the victim without causing any destruction. The campaign lasted between August and November 2022, targeting organizations in medical research, healthcare, chemical engineering, energy, defense, and a leading ...