{"id":400951,"date":"2020-12-16T09:03:37","date_gmt":"2020-12-16T14:03:37","guid":{"rendered":"http:\/\/www.marketnewsdesk.com\/?p=400951"},"modified":"2020-12-16T09:03:37","modified_gmt":"2020-12-16T14:03:37","slug":"sophos-reports-on-how-systembc-has-developed-into-an-off-the-shelf-tor-backdoor-used-by-ransomware-operators","status":"publish","type":"post","link":"https:\/\/www.marketnewsdesk.com\/index.php\/sophos-reports-on-how-systembc-has-developed-into-an-off-the-shelf-tor-backdoor-used-by-ransomware-operators\/","title":{"rendered":"Sophos Reports On How SystemBC Has Developed Into An Off-The-Shelf Tor Backdoor Used By Ransomware Operators"},"content":{"rendered":"

\nUpgraded Tool Used In Ryuk And Egregor Attacks
\n<\/h2>\n
\n

OXFORD, United Kingdom, Dec. 16, 2020 (GLOBE NEWSWIRE) — Sophos<\/a>, a global leader in next-generation cybersecurity, today published new research into the SystemBC malware, \u201cRansomware operators use SystemBC RAT as off-the-shelf Tor backdoor<\/a>.\u201d The research shows how SystemBC has developed into a fully-fledged remote access tool that acts as a Tor proxy and is being used in ransomware-as-a-service attacks for communications, data exfiltration and the download and execution of malicious modules.<\/p>\n

SystemBC was first discovered in 2019, operating like a \u201cvirtual private network\u201d via a SOCKS5 proxy. A year on, the upgraded version analysed by Sophos provides attackers with a persistent backdoor that automates a number of key activities so that operators can launch multiple attacks without the need for hands-on-keyboard activity. It can execute Windows commands passed over the Tor connection, as well as deliver and execute scripts, malicious executables and dynamic link libraries (DLLs).<\/p>\n

Sophos\u2019 research is based on investigations into recent ransomware-as-a-service attacks involving Ryuk and Egregor, which all deployed SystemBC. The investigations show that SystemBC is used in combination with different commodity tools, creating a diverse profile of tactics, techniques and procedures (TTPs). For instance, in some of the Ryuk attacks investigated SystemBC was deployed alongside Buer Loader malware, while other attacks in the same campaign used Bazar or Zloader. The Egregor attacks that Sophos investigated used SystemBC together with Qbot.<\/p>\n

\u201cWe are increasingly seeing ransomware operators outsource the deployment of ransomware to affiliates using commodity malware and attack tools,\u201d said Sean Gallagher, senior security researchers, Sophos. \u201cSystemBC is a regular part of recent ransomware attackers\u2019 toolkits\u2014 Sophos has detected hundreds of attempted SystemBC deployments worldwide over the last few months. The backdoor can be used in combination with other scripts and malware to perform discovery, exfiltration and lateral movement in an automated way across multiple targets. These SystemBC capabilities were originally intended for widespread commodity malware, but they have now been folded into the toolkit for targeted attacks\u2014including ransomware.<\/p>\n

\u201cThe use of multiple tools in ransomware-as-a-service attacks creates an ever more diverse attack profile that is harder for IT security teams to predict and deal with. Defense-in-depth, employee education and human-based threat hunting are essential to detecting and blocking such attacks.\u201d<\/p>\n

A list of IOCs for SystemBC is posted on SophosLabs\u2019 GitHub page.<\/p>\n

Further information on System BC and other cyberthreats can be found on SophosLabs Uncut<\/a> where\u00a0Sophos researchers regularly publish their latest research and breakthrough findings, such as Egregor Ransomware: Maze\u2019s Heir Apparant<\/a> and Inside a New Ryuk Ransomware Attack<\/a>. Threat researchers can follow SophosLabs Uncut in real time on Twitter at @SophosLabs<\/a>.<\/p>\n

\n Additional Resources<\/strong>\n <\/p>\n