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:
- T-Mobile says hackers accessed user data but won’t confirm SSN breach of 100 million customers
August 16, 2021
T-Mobile is looking into allegations that a hacker stole 106GB of data containing the social security numbers, names, addresses and driver’s license information for more than 100 million people. In a statement to ZDNet, T-Mobile said it is “aware of claims made in an underground forum and have been actively investigating their validity.” Teams at T-Mobile ...
- Exchange Servers Under Active Attack via ProxyShell Bugs
August 15, 2021
Researchers’ Microsoft Exchange server honeypots are being actively exploited via ProxyShell: The name of an attack disclosed at Black Hat last week that chains three vulnerabilities to enable unauthenticated attackers to perform remote code execution (RCE) and snag plaintext passwords. In his Black Hat presentation last week, Devcore principal security researcher Orange Tsai said that a ...
- Cyberattackers Embrace CAPTCHAs to Hide Phishing, Malware
August 13, 2021
Cyberattackers are using Google’s reCAPTCHA (aka the “I am not a robot” function) and fake CAPTCHA-like services to obscure various phishing and other campaigns, according to researchers. There are signs however that those evasion efforts may be losing their efficacy. CAPTCHAs are familiar to most internet users as the challenges that are used to confirm that ...
- SynAck ransomware group releases decryption keys as they rebrand to El_Cometa
August 13, 2021
The SynAck ransomware gang has released decryption keys for victims that were infected between July 2017 and 2021, according to data obtained by The Record. SynAck is in the process of rebranding itself as the El_Cometa ransomware gang, and a member of the old group gave the keys to The Record. Emsisoft’s Michael Gillespie confirmed the veracity ...
- Microsoft Warns: Another Unpatched PrintNightmare Zero-Day
August 12, 2021
One day after dropping its scheduled August Patch Tuesday update, Microsoft issued a warning about yet another unpatched privilege escalation/remote code-execution (RCE) vulnerability in the Windows Print Spooler. The zero-day bug, tracked as CVE-2021-36958, carries a CVSS vulnerability-severity scale rating of 7.3, meaning that it’s rated as “important.” Microsoft said that it allows for a local ...
- IT threat evolution Q2 2021
August 12, 2021
It is quite common for Chinese-speaking threat actors to share tools and methodologies: one such example is the infamous “DLL side-loading triad”: a legitimate executable, a malicious DLL to be side-loaded by it and an encoded payload, generally dropped from a self-extracting archive. This was first thought to be a signature of LuckyMouse, but we ...