Lightning strike. A lightning strike is an electric discharge between the atmosphere and an earth-bound object. They mostly originate in a cumulonimbus cloud and terminate on the ground, called cloud to ground (CG) lightning.
Virus protection software is designed to prevent viruses, worms and Trojan horses from getting onto a computer as well as remove any malicious software code that has already infected a computer. Most virus protection utilities now bundle anti-spyware and anti-malware capabilities to go along with anti-virus protection.
Antivirus Killer Virus or Retro Virus Based on the biological term retrovirus, a computer retrovirus is one that actively seeks out an antivirus program on a computer system and attacks it.7. Antivirus Killer Virus or Retro Virus Based on the biological term retrovirus, a computer retrovirus is one that actively seeks out an antivirus program on a computer system and attacks it. A retrovirus will attempt to disable and infect the antivirus software in order to avoid detection in the computer system.