W32/Opanki-I is an instant-messaging worm that attempts to spread via AOL Instant Messenger (AIM). W32/Opanki-I sends the message "check out my pictures" to the infected user's contacts with a link to download a PIF file from http://redblock.co.kr. At the time of writing this file was unavailable for download.

More information can be found at this Sophos page.