Computer users in China and Korea were the hardest hit by the latest wave of zero-day malware attacks targeting a flaw in the Internet Explorer browser. The attacks, first spotted on March 9, included Trojan downloaders and backdoor programs that gave malicious hackers full access to hijacked PCs. The MMPC said the attack landscape escalated immediately after proof-of-concept come was released and fitted into public exploit testing tool Metasploit. The group listed at least six Trojan variants related to these attacks and said it expects the threat landscape to mellow.
Source: https://threatpost.com/china-hardest-hit-latest-ie-malware-attacks-040110/73770/