Menu
Hackers use a trick to deliver Zeus banking malware

Hackers use a trick to deliver Zeus banking malware

Zeus is encrypted and contained in an ".enc" file, which security products allow through, according to Malcovery Security

Hackers found a new way to slip past security software and deliver Zeus, a long-known malicious software program that steals online banking details.

Security company Malcovery Security, based in Georgia, alerted security analysts after finding that none of 50 security programs on Google's online virus scanning service VirusTotal were catching it as of early Sunday.

Gary Warner, Malcovery's chief technologist, posted on his blog an assortment of spam messages, which spoofed brands and organizations such as the payment processor ADP, the Better Business Bureau and the British tax authority HMRC.

The spam messages contain a ".zip" file, which, if opened, contains a small application called UPATRE. That executable file downloads a ".enc" file, which it then decrypts. The decrypted file is GameOver Zeus, a variant of the notorious Zeus malware.

Zeus first appeared in 2006 and has long been a thorn in the side of banks. Its source code was leaked in May 2011, and cybercriminals have continued to make improvements to make its network more resilient, according to Dell's SecureWorks unit.

Security products are appearing to stumble on the ".enc" file since it doesn't end in ".exe," which designates an executable program, Warner wrote.

"Why? Well, because technically, it isn't malware," he wrote.

He advised that network administrators check their logs to see if any ".enc" files have been downloaded on their networks. The spam is distributed by the Cutwail botnet, another long-running botnet known for distributing malware.

"It is likely that many different criminals are paying to use this infrastructure," Warner wrote.

Send news tips and comments to jeremy_kirk@idg.com. Follow me on Twitter: @jeremy_kirk


Follow Us

Join the newsletter!

Error: Please check your email address.

Tags securitymalwaredata protectionencryptionExploits / vulnerabilitiesDesktop securityMalcovery Security

Featured

Slideshows

Looking back at the top 15 M&A deals in NZ during 2017

Looking back at the top 15 M&A deals in NZ during 2017

In 2017, merger and acquisitions fever reached new heights in New Zealand, with a host of big name deals dominating the headlines. Reseller News recaps the most important transactions of the Kiwi channel during the past 12 months.

Looking back at the top 15 M&A deals in NZ during 2017
Kiwi channel closes 2017 with After Hours

Kiwi channel closes 2017 with After Hours

The channel in New Zealand came together to celebrate the close of 2017, as the final After Hours played out in front of a bumper Auckland crowd.

Kiwi channel closes 2017 with After Hours
Meet the top performing HP partners in NZ

Meet the top performing HP partners in NZ

HP honoured leading partners across the channel at the Partner Awards 2017 in New Zealand, recognising excellence across the entire print and personal systems portfolio.

Meet the top performing HP partners in NZ
Show Comments