This malicious e-mail was written from overseas country though; those have been being sent in Korea via e-mail.
Because it was disguised as a "Credit card suspension information mail", in case of general credit card holder, they can see the mail and download and execute attachments without doubt.
2. Spreading path and symptoms of infection
This kind of malicious e-mail can be received on using internet by personal e-mail account information leakage. In addition malicious file attached in e-mail can be downloaded including SNS, Instant messenger.
This following figure is the one of those e-mails.
* Similar malicious e-mails
This mail leads user to download attachments for getting more details about credit card suspension.
Those malicious e-mails may contain following files as an attachments.
These attachments’ file name may be changed in vary. The files attached malicious e-mail are usually fake anti-virus installation file. Detailed analysis is on process.
3. How to prevent
General user can hardly notice something happened in his PC while spreading malicious file with using social engineering.
To use PC safely from security threats of these malicious files, we recommend following tips "Security management tips" for general users.
INCA Internet (Security Response Center / Emergency Response Team) provides diagnosis/treatment function such as malicious file stated above and runs responding system 24 hours against various security threats.