• Threat Level: Low
  • Description: CDEF is a virus discovered in Ithaca, New York, in August 1990. In February 1993, a mutant strain of CDEF was discovered in New York. The mutation varied so slightly that even a variant name was considered unnecessary. CDEF is not designed to be malicious but can cause problems nonetheless. Because it infects only Desktop files (invisible files used by the Finder), CDEF spreads from disk to disk very quickly.
  • Type: TT_Virus
  • Threat Analysis: Search ThreatExpert to view reports
  • Removal: This infection can be removed using Spyware Doctor.

More Information:

With new threats to your PC emerging every day, it's essential to maintain up-to-date antivirus software in order to fend off the latest viruses, worms, and Trojans. But before implementing the proper defense, it's necessary to identify the malware that's capable of infecting your PC. And that's where the PC Tools Malware Research Center comes in. The highly specialized MRC team is dedicated to researching the most recent threats and updating its database of known infections accordingly. That way, PC Tools can constantly update its award-winning antivirus and antispyware software, making it practically impenetrable. Whether it's a Trojan, worm, virus, or spyware—if it's found within MRC's Infection Database, PC Tools' Spyware Doctor can remove it. PC Tools goes beyond malware protection; it also highly values educating PC users about the threats they continuously face. Each piece of malware included herein contains useful information such as a description of the infection and how dangerous it is. After all, being well informed is another vital step to staying safe.