Parent class: VirWare
Viruses and worms are malicious programs that self-replicate on computers or via computer networks without the user being aware; each subsequent copy of such malicious programs is also able to self-replicate. Malicious programs which spread via networks or infect remote machines when commanded to do so by the “owner” (e.g. Backdoors) or programs that create multiple copies that are unable to self-replicate are not part of the Viruses and Worms subclass. The main characteristic used to determine whether or not a program is classified as a separate behaviour within the Viruses and Worms subclass is how the program propagates (i.e. how the malicious program spreads copies of itself via local or network resources.) Most known worms are spread as files sent as email attachments, via a link to a web or FTP resource, via a link sent in an ICQ or IRC message, via P2P file sharing networks etc. Some worms spread as network packets; these directly penetrate the computer memory, and the worm code is then activated. Worms use the following techniques to penetrate remote computers and launch copies of themselves: social engineering (for example, an email message suggesting the user opens an attached file), exploiting network configuration errors (such as copying to a fully accessible disk), and exploiting loopholes in operating system and application security. Viruses can be divided in accordance with the method used to infect a computer:- file viruses
- boot sector viruses
- macro viruses
- script viruses
Class: Virus
Viruses replicate on the resources of the local machine. Unlike worms, viruses do not use network services to propagate or penetrate other computers. A copy of a virus will reach remote computers only if the infected object is, for some reason unrelated to the virus function, activated on another computer. For example: when infecting accessible disks, a virus penetrates a file located on a network resource a virus copies itself to a removable storage device or infects a file on a removable device a user sends an email with an infected attachment.Read more
Platform: Win32
Win32 is an API on Windows NT-based operating systems (Windows XP, Windows 7, etc.) that supports execution of 32-bit applications. One of the most widespread programming platforms in the world.Description
Technical Details
It is not a dangerous nonmemory resident encrypted parasitic Win95 virus. Being executed the virus scans Win95 kernel and gets undocumented addresses of system file access function (see the list below). Then it searches for NewEXE Portable Executable (Win95 and NT) files in Windows directory, in C:, D:, E: and F: drives subdirectory tree and infects them.
While infecting the virus creates new section ".Z0MBiE" in PE header, writes its code to the end of the file and modifies address of Entry Point. The virus also aligns the file length to the section, so the file lengths grows more that Virus_Length bytes while infection. The virus infect some files incorrectly, Windows displays standard error message when these files are executed.
The virus also creates ZSETUP.EXE files on disks and writes to there "Zombie.VPI" DOS virus dropper.
The virus contains the text strings, a part of these strings are the names of system functions that are used during infection:
ExitProcess FindFirstFileA FindNextFileA CreateFileA SetFilePointer ReadFile WriteFile CloseHandle GetCurrentDirectoryA SetCurrentDirectoryA GetWindowsDirectoryA GetCommandLineA WinExec GetFileInformationByHandle .Z0MBiE Z0MBiE 1.01 (c) 1997 My 2nd virii for mustdie Tnx to S.S.R. ZSetUp.EXE
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