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A logic bomb is a piece of code intentionally inserted into a software system that will set off a malicious function when specified conditions are met. For example, a programmer may hide a piece of code that starts deleting files (such as a salary database trigger ), should they ever be terminated from the company.
Jerusalem is a logic bomb DOS virus first detected at Hebrew University of Jerusalem, in October 1987. [1] On infection, the Jerusalem virus becomes memory resident (using 2kb of memory), and then infects every executable file run, except for COMMAND.COM. [2] COM files grow by 1,813 bytes when infected by Jerusalem and are not re-infected.
February: Hackers including those with names of "张卫能 utoyo" and "full_discl0sure" hijacked an events website Aucklife in order to craft a phony bomb threat against the Chinese consulate in Auckland, New Zealand, and also a similar facility in Sydney, Australia. Their motive was a punitive response against China due to COVID-19. As a ...
Also known as a logic bomb, this is the part of the virus that determines the condition for which the payload is activated. [38] This condition may be a particular date, time, presence of another program, size on disk exceeding a threshold, [ 39 ] or opening a specific file.
An example of this is a portable execution infection, a technique, usually used to spread malware, that inserts extra data or executable code into PE files. [34] A computer virus is software that embeds itself in some other executable software (including the operating system itself) on the target system without the user's knowledge and consent ...
The malware had a logic bomb which triggered the master boot record and data wiping payload at 11:08 am local time on Wednesday, August 15. The attack occurred during the month of Ramadan in 2012. It would appear that the attack was timed to occur after most staff had gone on holiday reducing the chance of discovery before maximum damage could ...
Stuxnet specifically targets programmable logic controllers (PLCs), which allow the automation of electromechanical processes such as those used to control machinery and industrial processes including gas centrifuges for separating nuclear material.
The concept behind a fork bomb — the processes continually replicate themselves, potentially causing a denial of service. In computing, a fork bomb (also called rabbit virus) is a denial-of-service (DoS) attack wherein a process continually replicates itself to deplete available system resources, slowing down or crashing the system due to resource starvation.