Never open a file with this name unless you have isolated it in a virtual machine with no network access.
H.264/AVC or similar codec, typically in 720p or 1080p resolution. AAC or AC3 stereo. carib122813509mkv
For a file from late 2013, an MKV labeled this way would typically have the following technical characteristics (note that actual specs can vary if the file has been re-encoded): Never open a file with this name unless
, a well-known Japanese website that features uncensored adult video content. "122813509" : This represents a release date and serial number (likely December 28, 2013 , release #509). carib122813509mkv
For IT administrators seeing this in network logs: block the associated hash values via firewall content filtering or security appliance rules.