What is MALWARE
- MALWARE is a Malicious Software with unknow functionality. May can be harm to a user, computer or network.
- Malware includes viruses, Trojan horse, RootKit, ShareWare and spyware.
- Malware can delete, encrypt, steal and alter sensitive data.
- It also can change the core functionality of computer systems.
Malware can classified in two types.
Malware can be classified based on Production Rings.
Kernel Mode Malware
- Targeting most privileged layer or Ring 0 is known as Kernel Mode Malware.
- It corrupts the kernel program and affect the software installed on a system. When it affect we could not able to use the application.
User Mode Malware
- When Ring 3 is affected it is known as User mode Malware.
- It affects the particular file and we can still use the application and create new file.
Categorization
Malware Can be categorized into four.
- VIRUS
- Worm
- Trojan
- Backdoor
VIRUS
VIRUS stands for Vital Information Resources Under Siege.
VIRUS is a program or code the affects normal behaviour of the system.
Components of VIRUS
Concealer
- It prevents the discovery of activity and structure of a virus program for the purpose of avoiding virus detection and forensics.
- It making virus in stealthy and avoid being caught from Anti-Virus.
Payload
- It is malicious code of executable instruction.
- It carry the another virus and it affects the specific host.
Replicator
- Duplicates the virus into the system.
Payload and Replicator combination can persist the VIRUS even after formatting the system.
Life Cycle of VIRUS
- Origination
- Transmission
- Triggering
- Infection
- Identification
- Removal
Ref :
https://books.google.co.in/books?id=0_VqCQAAQBAJ&pg=PA409&lpg=PA409&dq=concealer+payload+replicator+in+VIRUS&source=bl&ots=WrvH8GtiTW&sig=k-QkgyiOVA_ilH2O5HvmAoDSS6A&hl=en&sa=X&ved=0ahUKEwj0jtvC-tLbAhXDbCsKHfsaDWcQ6AEILTAB#v=onepage&q=concealer%20payload%20replicator%20in%20VIRUS&f=false
https://stackskills.com/courses/fundamentals-of-computer-hacking/lectures/3153827
https://searchsecurity.techtarget.com/definition/malware
