Malicious e-mails are spreading indiscriminately, and threat user with virus, worm, phishing, spyware and adware.
With a booming of malicious e-mails, we are introducing various types of e-mails in prevalent these days.
2. Spreading path and symptoms of infection
Spreading technique via e-mail is similar as always. User just can be infected on executing attachment or clicking suspicious URL. Since various types of malicious files using vulnerability of various applications have been reported, general users need to be careful on using internet.
Following attachments has been reported to cause malicious behaviors such as Zeus Bot or SpyEye Bot after infecting PC.
1. Disguised as sent by public institutions
Following case is from U.S. Chamber of Commerce.
2. Disguised as sent by express logistics
Following case is from DHL.
Based on our analysis, we got the result as following.
4. How to prevent
Due to the nature of BIOS and MBR, complete treating by Anti-Virus is difficult.
To use PC safely from security threats of these malicious attachments, we recommend following "Security management tips" for general users.
INCA Internet (Security Response Center / Emergency Response Team) provides diagnosis/treatment function with “nProtect Anti-Virus/Spyware” for detecting such as malicious file stated above and runs responding system against various security threats.