Feeds

Windows Shortcut Flaw underpins power plant Trojan

Dangerous lnk to spying

Intelligent flash storage arrays

Hackers have developed malware that spreads via USB sticks using a previously unknown security weakness involving Windows' handling of shortcut files.

Malware targeting the security weakness in the handling of 'lnk shortcut files has been spotted in the wild by Belarus-based security firm VirusBlokAda. The malware uses rootkit-style functionality to mask its presence on infected systems. These rootlet drivers come digitally signed by legitimate software developer Realtek Semiconductor, a further mark of the sophistication of the attack.

In an advisory, VirusBlokAda says it has seen numerous incidents of the Trojan spy payloads dropped by the malware since adding detection for the malign code last month.

Even fully patched Windows 7 systems are vulnerable to attack in cases where a user views files on an infected USB drive using Windows Explorer, security blogger Brian Krebs reports. Instead of using Windows Autoplay to spread the malware takes advantage of security weaknesses involving shortcut files. Malicious shortcuts on the USB are reportedly capable of auto-executing if users open an infected storage device on Windows Explorer. Normally users would have to click on the link for anything to happen.

Independent researcher Frank Boldewin has uncovered evidence that the malware is targeting SCADA control systems, used to control industrial machinery in power plants and factories, and specifically Siemens WinCC SCADA systems.

"Looks like this malware was made for espionage," Boldewin writes.

Firms faced with a spate of Windows autorun worms have responded by disabling autorun, but this advice may no longer be enough with the appearance of a new attack vector, Finnish security firm F-Secure warns. "Our initial analysis of the samples appears to indicate that the shortcuts somehow take advantage of the way in which Windows handles Control Panel shortcut files," it adds.

Microsoft is reportedly in the process of investigating the apparent security flaw underpinning the attack. ®

Top 5 reasons to deploy VMware with Tegile

Whitepapers

Choosing cloud Backup services
Demystify how you can address your data protection needs in your small- to medium-sized business and select the best online backup service to meet your needs.
Forging a new future with identity relationship management
Learn about ForgeRock's next generation IRM platform and how it is designed to empower CEOS's and enterprises to engage with consumers.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
Storage capacity and performance optimization at Mizuno USA
Mizuno USA turn to Tegile storage technology to solve both their SAN and backup issues.