- Jul 27, 2015
Researchers at VMware Carbon Black are tracking the threat, dubbed BatLoader, and say its operators are using the dropper to distribute a variety of malware tools including a banking Trojan, an information stealer, and the Cobalt Strike post-exploit toolkit on victim systems. The threat actor's tactic has been to host the malware on compromised websites and lure users to those sites using search engine optimization (SEO) poisoning methods.
Researchers Sound Alarm on Dangerous BatLoader Malware DropperBatLoader relies heavily on batch and PowerShell scripts to gain an initial foothold on a victim machine and to download other malware onto it. This has made the campaign hard to detect and block, especially in the early stages, analysts from VMware Carbon Black's managed detection and response (MDR) team said in a report released on Nov. 14.
VMware said its Carbon Black MDR team had observed 43 successful infections in the last 90 days, in addition to numerous other unsuccessful attempts where a victim downloaded the initial infection file but did not execute it. Nine of the victims were organizations in the business services sector, seven were financial services companies, and five were in manufacturing. Other victims included organizations in the education, retail, IT, and healthcare sectors.
On Nov. 9, eSentire said its threat-hunting team had observed BatLoader's operator luring victims to websites masquerading as download pages for popular business software such as LogMeIn, Zoom, TeamViewer, and AnyDesk. The threat actor distributed links to these websites via ads that showed up prominently in search engine results when users searched for any of these software products.