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Source code viruses are a subset of computer viruses that make modifications to source code located on an infected machine. A source file can be overwritten such that it includes a call to some malicious code. By targeting a generic programming language, such as C, source code viruses can be very portable. Source code viruses are rare, partly ...
MUMPS ("Massachusetts General Hospital Utility Multi-Programming System"), or M, is an imperative, high-level programming language with an integrated transaction processing key–value database. It was originally developed at Massachusetts General Hospital for managing patient medical records and hospital laboratory information systems.
August: Ken Thompson publishes his seminal paper, "Reflections on Trusting Trust", in which he describes how he modified a C compiler so that when used to compile a specific version of the Unix operating system, it inserts a backdoor into the login command, and when used to compile a new copy of itself, it inserts the backdoor insertion code ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 27 February 2025. Computer program that modifies other programs to replicate itself and spread Hex dump of the Brain virus, generally regarded as the first computer virus for the IBM Personal Computer (IBM PC) and compatibles A computer virus is a type of malware that, when executed, replicates itself by ...
SQL Slammer [a] is a 2003 computer worm that caused a denial of service on some Internet hosts and dramatically slowed general Internet traffic.It also crashed routers around the world, causing even more slowdowns.
Polymorphic virus which infects systems by inserting fragments of its code randomly into executable files. Brain: Pakistani flu: DOS Boot sector virus 1986-01 Lahore, Pakistan: Basit and Amjad Farooq Alvi: Considered to be the first computer virus for the PC: Byte Bandit: Amiga Boot sector virus 1988-01 Swiss Cracking Association
For example, code in the virus suppresses the printing of console messages if, say, the virus is not able to infect a file on a read-only device such as a floppy disk. One of the clues that a computer is infected is the mis-capitalization of the well-known message " Bad command or file name " as "Bad Command or file name".
Flame (a.k.a. Da Flame) was identified in May 2012 by the MAHER Center of the Iranian National CERT, Kaspersky Lab and CrySyS Lab (Laboratory of Cryptography and System Security) of the Budapest University of Technology and Economics when Kaspersky Lab was asked by the United Nations International Telecommunication Union to investigate reports of a virus affecting Iranian Oil Ministry ...