Webinjection Code a Key to Security
April 25, 2016
The heady days of open cybercrime discussions on the Dark Web are over, thanks to increasing investigation by law-enforcement. However, CaaS vendors still sell products like exploit kits, custom spam, and access to infected endpoints to those who know where to look. Security Intelligence discusses one of the most popular commodities, webinjection resources, in its article, “Dark Web Suppliers and Organized Cybercrime Gigs.” Reporter Limor Kessem explains:
“Webinjections are code snippets that financial malware can force into otherwise legitimate Web pages by hooking the Internet browser. Once a browser has been compromised by the malware, attackers can use these injections to modify what infected users see on their bank’s pages or insert additional data input fields into legitimate login pages in order to steal information or mislead unsuspecting users.
“To be considered both high-quality and effective, these webinjections have to seamlessly integrate with the malware’s injection mechanism, display social engineering that corresponds with the target bank’s authentication and transaction authorization schemes and have the perfect look and feel to fool even the keenest customer eye.”
Citing IBM X-Force research, Kessem says there seem to be only a few target-specific webinjection experts operating on the Dark Web. Even cybercriminals who develop their own malware are outsourcing the webinjection code to one of these specialists. This means, of course, that attacks from different groups often contain similar or identical webinjection code. IBM researchers have already used their findings about one such vendor to build specific “indicators of compromise,” which can be integrated into IBM Security products. The article concludes with a suggestion:
“Security professionals can further extend this knowledge to other platforms, like SIEM and intrusion prevention systems, by writing custom rules using information about injections shared on platforms like X-Force Exchange.”
Cynthia Murrell, April 25, 2016