Are message alerts warning users about new unknown viruses or Trojan programs. These messages "inform" that there is a new type of virus spreading through the Internet channels and/or e-mail and destroying information on affected computers.
These messages are deliberately false and started by people with malicious intentions. The duped users then pass these messages to other people thinking they are helping them to protect themselves against a new danger. Usually, the text of these fake "new virus" messages is written in panicky script and may appear as an example of the following:
WARNING!!! If you receive an e-mail titled "JOIN THE CREW" DO NOT open it! It will erase EVERYTHING on your hard drive! Send this letter out to as many people you can....this is a new virus and not many people know about it! There are other variants of such messages reporting about viruses in non-executable data files (graphic and sound files), in the CMOS and BIOS, etc.
The possibility of incorporating a file virus into virtually any executable of virtually any popular OS does exist. As of today, there are known viruses infecting all kinds of executables of standard DOS: batch command files (BAT), loadable drivers (SYS, including special purpose files IO.SYS and MS- DOS.SYS) and binary executables (EXE, COM). There also exist viruses targeting executables of other operating systems - Windows 3.x, Windows95/NT, OS/2, Macintosh, Unix, including the VxD drivers of Windows 3.x and Windows95.
They are generally called as backdoor programs, these are generally small scripts or codes, which are passed through internet or an email, once it infects the machines the program starts looking for open network ports and starts working as directed by the coder.
Monitors all the email addresses of the infected machine.
Attaches itself to registry control for any antivirus and disables it.
How it affects ? Infected machine user : mac Email Id’s in Address book Like [email_address] + Internet Connectivity Worm Mail to [email_address] from : email@example.com Mail to [email_address] from : [email_address] + data file attached
Most of our international and ESD user(s) have been reporting the cause of the crash and most amazingly they were responsible for the cause of crash, we receive 100 – 300 mails for data loss per week and 60 –70 % are human error.