The message claims to contain pictures of English footballer David Beckham caught in a compromising position with "a Spanish hooker", but when the file is opened it instead installs the Hackarmy Trojan horse.
This program turns a PC into a 'zombie computer' that can be controlled remotely by hackers, and used to distribute spam or launch denial of service attacks.
Graham Cluley, senior technology consultant for Sophos, said the file has been posted to thousands of different news sites.
This is not the first time the Hackarmy virus writer has used pictures of celebrities to recruit zombie computers. Inn the past Internet postings have advertised pictures of singer Britney Spears, or Osama Bin Laden, according to Cluley.
ZDNet UK's Ingrid Marson reported from London. For more coverage from ZDNet UK, click here.
