Virus writer toolkits and the general ease of creating new variants of established malware strains mean anti-virus firms have begun to need three alphabetical letters for some Trojan families.

It's tough at the coalface, fighting the never-ending malware in email menace, so it's understandable that techies chuckled when they stopped several copies of Trojan-Downloader-Small-Coc on Tuesday, as the prolific malware strain crossed an eagerly awaited double entendre-loaded milestone.

Ironically, the email text reads:

Hi,

I want to share my photo with you.

Wishing you all the best.

Regards,

If you try and view the photo, you are then compromised by the small-coc, our source (who wishes to remain anonymous) informs us. ®

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