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:

  • SilverTerrier – Nigerian Business Email Compromise

    October 7, 2021

    Business email compromise (BEC) remains the most common and most costly threat facing our customers. The year 2020 marked the fifth year in which these schemes held the top position on the annual FBI Internet Crime Complaint Center (IC3) report. Over half a decade, global losses ballooned from $360 million in 2016 to a staggering ...

  • US Navy Warship’s Facebook Page Hacked to Stream ‘Age of Empires’ Gaming

    October 7, 2021

    The official Facebook page of a destroyer-class Navy warship, the USS Kidd, has gone rogue: Someone has taken over the page in order to…stream Age of Empires play. Age of Empires is a real-time online multiplayer strategy game in which the objective is to advance one’s civilization. Players “build, settle, trade and fight” their way from ...

  • Google warns 14,000 Gmail users targeted by Russian hackers

    October 7, 2021

    Google has warned about 14,000 of its users about being targeted in a state-sponsored phishing campaign from APT28, a threat group that has been linked to Russia. The campaign was detected in late September and accounts for a larger than usual batch of Government-Backed Attack notifications that Google sends to targeted users every month. Shane Huntley, who ...

  • Twitch source code, business data, gamer payouts leaked in massive hack

    October 6, 2021

    An unknown hacker has leaked the entirety of Twitch’s source code among a 128 GB trove of data released this week. The hack, first reported by Video Games Chronicle and confirmed by multiple sources, includes: The entirety of twitch.tv, with commit history going back to its early beginnings Mobile, desktop and console Twitch clients Creator payout reports from 2019 Proprietary ...

  • New UEFI bootkit used to backdoor Windows devices since 2012

    October 5, 2021

    A newly discovered and previously undocumented UEFI (Unified Extensible Firmware Interface) bootkit has been used by attackers to backdoor Windows systems by hijacking the Windows Boot Manager since 2012. Bootkits are malicious code planted in the firmware (sometimes targeting UEFI) invisible to security software that runs within the operating system since the malware is designed to ...

  • Apache Web Server Zero-Day Exposes Sensitive Data

    October 5, 2021

    Apache Software has quickly issued a fix for a zero-day security bug in the Apache HTTP Server, which was first reported to the project last week. The vulnerability is under active exploitation in the wild, it said, and could allow attackers to access sensitive information. According to a security advisory issued on Monday, the issue (CVE-2021-41773) ...