Virus Database

Urkel

Description Urkel

It's a not dangerous memory resident encrypted stealth boot virus. It hooks INT 13h and writes itself into MBR of hard drive and boot sectors of the floppy disks. It displays the string:
Urkel

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Constructor.VBS.SSIWG

Description Constructor.VBS.SSIWG

"VBS.SSIWG" is script-worm construction tool. It was used to create the "SSIWG" virus families.

The constructor is able to create worms, which can replicate using e-mail and IRC channels (using the mIRC or pIRCh programs). The worms created using this constructor can also:
start automatically in Windows
encrypt their code
There are 2 different versions of this constructor.

Constructor.VCL

Description Constructor.VCL

The virus constructor utility VCL.EXE (Virus Creation Laboratory) seems to be the most well-known virus creation tool. This constructor can generate source assembler files of the viruses, OBJ modules and infected master files. VCL contains the standard pop-up menu interface. By using VCL menus, it is possible to choose the virus type, enable or disable self encryption, anti-debugging code, and internal text strings. It also is possible to choose up to 10 effects, which are summoned upon virus execution, etc. VCL-based viruses can use a standard means for infection (they append their code to the files while infecting them), they can overwrite the files or use companion technology.
The main properties of VCL-viruses are:
they are non-memory resident;
they scan the subdirectory three or the current directory of the current drive while infecting files;
they append to COM files, or create new COM files or overwrite COM and EXE files.

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