Page 36 - TP_iPlus_V2.1_Class7
P. 36
Ransomware
Ransom is the money demanded for the release of a kidnapped hostage. Similarly, ransomware is
malicious software used to access the data of the host system illegally by encrypting it. The victim of
the attack has to pay a huge amount of money to the attacker to regain access to their data.
Rootkit
Rootkit is a type of malware that gains administrator access to the host system. Once the attacker
gains access to the system, the rootkit gets hidden but retains special access to the system. The
detection of rootkit is difficult as it has special access to the system, it bypasses the tracking software.
Backdoor
A backdoor is a method or software used to bypass normal authentication or security measures
to gain unauthorized remote access to a computer or network. Backdoors can be installed
through malicious software or vulnerabilities in legitimate software, allowing attackers to control
the system covertly.
i + THE MOST DANGEROUS MALWARES KNOWN
• Wabbit Virus (1974) is a self-replicating virus that creates multiple copies of itself, causing
system slowdowns and crashes.
• ILOVEYOU Virus (2000) spread via email with a subject line of "I Love You," containing a
malicious attachment that appeared as a harmless text file.
• Code Red Worm (2001) would spread itself with the message: “Hacked By Chinese!”
• Mydoom Worm (2004) scraped addresses from infected machines, then sent copies of itself
to those addresses.
• Storm Worm (2007) attacked millions of computers with an email about approaching bad
weather.
• Zeus, also known as Zbot Trojan horse (2007) was made with an intention to steal banking
information of United States Department of Transportation.
• Emotet (2014) is considered one of the most destructive and dangerous Trojans. It spreads
through spam emails to steal banking information.
• Pegasus (2016) is commercial spyware. It secretly infects a smartphone (Android or iOS) and
tracks the device completely for every action.
Info Byte
Most malware programs are distributed over the Internet, often bundled with other
software.
i + ANTIVIRUS
Antivirus software is a set of programs designed to identify, prevent, and remove malware from
your computer. It helps protect your system by detecting viruses and other malicious threats
34
iPlus (Ver. 2.1)-VII

