Antivirus firm Sophos has disassembled the Archiveus Trojan, also known as MayAlert, and recovered the password which is: "mf2lro8sw03ufvnsq034jfowr18f3cszc20vmw" (without quotes). The first example of ransomware appeared in March 2006, when the Zippo Trojan demanded $300 for the safe return of users' encrypted data. The Ransom-A Trojan horse appeared the following month threatening to delete stolen files one-by-one until a ransom was paid.