Chinese malware attack affected dozens of South Korean organizations, researchers say
Over 1,000 computers were recently infected with a piece of malware used by Chinese-speaking hackers, researchers from Seculert said
IDG News Service - A recent targeted attack that used Chinese malware compromised over 1,000 computers belonging to dozens of South Korea organizations, according to researchers from Israeli security firm Seculert.
The main malware tool used in the attack is called PinkStats and has been used by several Chinese-language groups to target different organizations and nation states from around the world during the past four years, the Seculert researchers said Tuesday in a blog post.
PinkStats is designed to download and install additional malicious components after it infects a computer and then report successful installations to its command and control server.
In the South Korean attacks, the malware installed a common Chinese attack tool called "zxarps" that acts as a worm on the local network, the Seculert researchers said.
The "zxarps" tool uses a technique called ARP poisoning to intercept Web sessions from other computers on the network and inject a malicious ActiveX component into them. If executed, the ActiveX control installs the PinkStats malware.
The malicious component was signed with a valid digital certificate issued by certificate authority Thawte to what is likely a fake company with a South Korean name, the researchers said.
A second component installed by PinkStats is a malware tool used to launch DDoS (distributed denial-of-service) attacks. The component masquerades as software developed by South Korean antivirus vendor AhnLab.
The attackers don't seem to have sent any specific instructions to the DDoS malware yet, the Seculert researchers said. However, it is reasonable to assume that this could change at any time, they said.
Data obtained by Seculert researchers from a PinkStats administration panel suggests that over 1,000 computers in South Korea were infected in the recent attack. Many of those machines belong to universities and other educational institutions.
Earlier this year, attackers used malware to cripple the computer networks of several South Korean banks and TV broadcasters. While many in South Korea blamed North Korean hackers for the attack, some security researchers said the malware's code is distinctly Chinese.
Even though there has been speculation that Chinese-speaking hackers have attacked South Korean organizations before, PinkStats seems to be the first proof of such an attack, the Seculert researchers said.
- The State of Video Conferencing Security Video conferencing equipment, found in almost every boardroom around the world, may be opening up companies to serious security breaches. This paper explains...
- Cybersecurity Imperatives: Reinvent your Network Security The Rise of CyberSecurity
- Cybersecurity for Dummies eBook This book provides an in-depth examination of real-world attacks and APTs, the shortcomings of legacy security solutions, the capabilities of next-generation firewalls, and...
- 10 Things Your Next Firewall Must do Next-Generation Firewalls Defined
- What are the desktop virtualization market trends and how can you successfully deploy your solution? You've probably heard about desktop virtualization -- and some of its benefits -- things like tighter security, streamlined management and lower costs. But...
- The Value of Symantec NetBackup Appliances In this video, Symantec's Shelley Schmokel, Principal Product Manager for NetBackup Appliances, talks about the NetBackup Integrated Appliances and how they deliver enterprise-class... All Security White Papers | Webcasts
Our new bimonthly Internet of Things newsletter helps you keep pace with the rapidly evolving technologies, trends and developments related to the IoT. Subscribe now and stay up to date!