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:

  • LinkedIn user accounts have been taken over in huge hacking campaign

    August 16, 2023

    Someone is targeting LinkedIn accounts, trying to break in with either login credentials leaked elsewhere, or with brute-force attacks. As a result, many people have had their accounts compromised, while others have been locked out due to too many failed login attempts. Read more… Source: TechRadar  

  • China’s Ministry of State Security warns of data security risks after Wuhan Earthquake Monitoring Center cyberattack

    August 16, 2023

    China’s Ministry of State Security (MSS) on Wednesday warned of data security risks after recent reports identified US intelligence agencies were behind a cyberattack on Wuhan Earthquake Monitoring Center. A joint investigation team formed by the National Computer Virus Emergency Response Center (CVERC) and Chinese cybersecurity company 360 discovered malicious backdoor software that exhibits characteristics of ...

  • Cyber crimes in Germany down 6.5% in 2022, federal police say

    August 16, 2023

    Cyber crimes in Germany fell by 6.5% in 2022, federal police said on Wednesday, but the decline was not a “relief” as the attacks were more severe and those originating from overseas rose by more than 8%. The economic damage was 203 billion euros ($221.59 billion), down slightly from last year, but still double that of ...

  • More than 100,000 hackers have details exposed through malware on cyber crime forums

    August 15, 2023

    Researchers have revealed that more than 100,000 hackers could be operating on compromised devices due to their involvement on cyber crime forums. A study from Hudson Rock identified around 120,000 devices infected with malware that contained login credentials for cyber crime forums. The firm said that many of the individuals operating with compromised machines may have ...

  • Discord.io gets taken down after massive data breach

    August 15, 2023

    Discord.io, a third-party service that helps people generate custom invites for their Discord channels, has been hacked, and information on some 760,000 members stolen. The service has since suspended its operations, and the attacker explained that this is actually a ransom attack – with a twist. As seen on BleepingComputer, a user going by the name ...

  • New widespread IoT compromise could affect millions of logic controller chips

    August 15, 2023

    Microsoft security researcher Vladimir Tokarev demonstrated an interesting attack on the industrial internet of things automation software called Codesys. Tokarev, who showed the exploit last week at the annual BlackHat security conference in Las Vegas, used a miniature elevator model to demonstrate how the attack could crash its cab. The software – and more importantly, its ...