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The 405 Virus is a computer virus which infects .COM files. The virus is loaded into memory by executing an infected program. The virus corrupts program files by overwriting the first 405 bytes of a COM file in the current directory. If the length of the file to be infected is less than 405 bytes, the length is increased to 405. Due to coding errors, the virus unsuccessfully attempts to infect files in other than the current directory. The virus is not able to recognize an infected file. Thus it will re-infect a file again and again. However, because it overwrites the first 405 bytes, the infected files do not grow in size. It is similar to the Virus 1.1 published in Ralf Burger's book.
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The 408 Virus is a computer virus which infects .COM files including COMMAND. COM. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation, corrupts program or overlay files.
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The 4096 Virus (Century Virus, IDF Virus, 100 Years Virus) is a memory- resident computer virus which uses stealth techniques to avoid detection and which infects .COM, .EXE and overlay files including COMMAND.COM adding 4096 bytes to their length. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation, corrupts program or overlay files and data files. Once the virus is resident in memory, the increase in length will not appear in a directory listing, and it will infect any executable file that is opened, including those opened with the COPY or XCOPY command. Through FAT manipulation, the virus destroys files through a slow cross linking process that would seem to be a hardware problem. If the virus is present in memory and you attempt to copy infected files, the new copy of the file will not be infected if the extension is neither COM nor EXE.
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The 422 Virus is a computer virus which infects .COM files. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation, corrupts program or overlay files.
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The 439 Virus is a computer virus which infects .COM files including COMMAND. COM. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation and corrupts program or overlay files.
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The 44 Virus is an overwriting computer virus written by Dark Helmet of the Trident organisation which infects .COM files including COMMAND.COM. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation and corrupts any files with an extension commencing C, such as . COM.
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The 482 Virus is a computer virus which infects .COM files including COMMAND. COM. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation and corrupts program or overlay files.
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The 487 Virus is a computer virus which infects .COM files. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation and corrupts program or overlay files.
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The 4915 Virus is a computer virus which infects .EXE files. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation and corrupts program or overlay files.
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The 4Mat2 Virus is a computer virus which infects .COM files. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation and corrupts program or overlay files.
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The 500 Virus is a computer virus which infects .COM files including COMMAND. COM. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation, corrupts program or overlay files.
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The 510 Virus is a computer virus which infects .COM files including COMMAND. COM. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation.
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The 512 Virus (also called the Number Of The Beast Virus) is a memory- resident computer virus which uses stealth techniques to avoid detection and which infects .COM files including COMMAND.COM. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation, corrupts program or overlay files and may damage the file allocation table.
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The 5120 Virus is a computer virus which infects .COM, .EXE and overlay files including COMMAND.COM. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation, corrupts program or overlay files and data files.
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The 547 Virus is a computer virus which infects .COM files. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation and corrupts program or overlay files.
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The 555 Virus is a computer virus which infects .COM, .EXE and overlay files including COMMAND.COM. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation, corrupts program or overlay files.
Research 555 Virus
The 557 Virus is a computer virus which infects .EXE files. The virus is loaded into memory by executing an infected program. The virus corrupts program or overlay files and data files.
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The 560 Virus is a computer virus which infects .COM files including COMMAND. COM. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation, corrupts program or overlay files.
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The 578 Virus is a computer virus which infects .COM files including COMMAND. COM. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation and corrupts program or overlay files.
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The 5LO Virus is a computer virus which infects .EXE files. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation and corrupts program or overlay files.
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The 621 Virus is a computer virus which infects .COM files including COMMAND. COM. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation and corrupts program or overlay files and data files.
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The 644 Virus is an encrypted computer virus which infects .COM and .EXE files. The virus is loaded into memory by executing an infected program. The virus corrupts data files.
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The 651 Virus is a computer virus which infects .COM files. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation and corrupts program or overlay files and data files.
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The 654 Virus is a computer virus which infects .COM files. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation and corrupts program or overlay files.
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The 658 Virus is a computer virus which infects .COM and .EXE files including COMMAND.COM. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation and corrupts program or overlay files.
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The 674 Virus is a VCL generated computer virus which infects .COM files including COMMAND.COM. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation and corrupts program files.
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The 702 Virus is a computer virus which infects .COM and .EXE files including COMMAND.COM. The virus is loaded into memory by executing an infected program. The virus corrupts program or overlay files.
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The 709 Virus is a computer virus which infects .COM files including COMMAND. COM. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation and corrupts program or overlay files.
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The 727 Virus is a computer virus which uses stealth techniques to avoid detection and which infects .COM files including COMMAND.COM. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation and corrupts program or overlay files.
Research 727 Virus
The 733 Virus is a computer virus which infects .COM files including COMMAND. COM. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation, corrupts program or overlay files and data files.
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The 737 Virus is a computer virus which infects .COM and .EXE files including COMMAND.COM. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation, corrupts program or overlay files.
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The 748 Virus is a computer virus which infects .COM files including COMMAND. COM. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation, corrupts data files.
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The 765 Virus is a computer virus which infects .EXE files. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation, corrupts program or overlay files.
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The 777 Virus is a computer virus which infects .COM files including COMMAND. COM. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation and corrupts program or overlay files.
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The 7808 Virus is a computer virus which infects .COM, .EXE and overlay files including COMMAND.COM. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation, corrupts program or overlay files and data files.
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The 789 Virus is a computer virus which infects .COM files including COMMAND. COM. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation.
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The 7th Son Virus is a computer virus which infects .COM files including COMMAND.COM. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation and corrupts program or overlay files.
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The 7thson 284 Virus is a computer virus which infects .COM files including COMMAND.COM. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation and corrupts program or overlay files.
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The 7thson 284a Virus is a computer virus which infects .COM files including COMMAND.COM. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation and corrupts program or overlay files.
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The 7thson 332b Virus is a computer virus which infects .COM files including COMMAND.COM. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation and corrupts program or overlay files.
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The 800 Virus is a computer virus which infects .COM and .EXE files including COMMAND.COM. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation and corrupts program or overlay files.
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The 8000 Virus is a computer virus which infects .EXE files. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation, corrupts program or overlay files.
Research 8000 Virus
The 812 Virus is an encrypted computer virus which infects .COM, .EXE and overlay files including COMMAND.COM. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation and corrupts data files.
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The 855 Virus is a computer virus which infects .COM, .EXE and overlay files including COMMAND.COM. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation, corrupts program or overlay files.
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The 889 Virus is a computer virus which infects .COM and .EXE files. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation and corrupts program or overlay files.
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The 90210 Virus is a semi-stealth virus written by the Trident organisation. It hides file-size changes while it is in memory and marks infected files with the timestamp. It will infect COM files on open, execute, delete, and rename. It checks if it is in memory by calling Int 21h with DEADh in AX and uses MCB's to go memory resident.
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The 903 Virus is a computer virus which infects .COM files including COMMAND. COM. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation and corrupts program or overlay files.
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The 905 Virus is a computer virus which infects .EXE files. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation and corrupts program or overlay files.
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The 911 virus is a direct variant of the Armageddon the GREEK Virus, derived merely by changing the text within and the dialling string. The virus size is 1079 bytes, making the smallest carrier 1081 bytes. The main effect of the virus is to dial ' 911' every once in a while if a modem is present on com ports 1-4 (the original virus dialled the speaking clock in Greece). It is a memory resident virus which infects .COM files.
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The 923 Virus is a computer virus which infects .COM, .EXE and overlay files including COMMAND.COM. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation, corrupts program or overlay files and data files.
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The 99% Virus is an encrypted computer virus which infects .EXE files. The virus is loaded into memory by executing an infected program. The virus corrupts data files.
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The 99%-B Virus is a computer virus which infects .EXE files. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation and corrupts program or overlay files.
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Abbreviations
Computer Viruses
