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.
37. 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.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.