The saga of the first Trojan Horse for Symbian smartphones took a twist worthy of Homer's epic poem the Iliad today, as it has become apparent that the perpetrator was the developer of the infected game itself, Ojum Software.

According to anti-virus company F-Secure, Ojum placed the Trojan in the game Mosquito as a clever form of copy protection. So if a ''cracked'' or illegal version of the game was developed or Mosquito was played on an unregistered smartphone, the Trojan dialed a specific number silently in the background, sending an SMS message notifying Ojum.

While the Trojan dialer worked as planned, as a cracked version of the game sent SMS messages to the company, it backfired too, as it appears a number of legitimate users were affected. Since Ojum picked a premium number for its Trojan to dial, even some of its customers ended up with large fees.

[CLB: A self-inflicted bad security measure affects clients.]