Path : %SYSTEM%\taskmon.exe [
Name : W32.Mydoom.A@mm
Names: I-Worm/Novarg, W32/Mydoom-A, W32/Mydoom@mm,
Mass mailing Internet worm
level : Low
Taskmon.exe is dropped by W32.Mydoom.A@mm
worm. Novarg aka Mydoom is a mass
mailing worm, uses e-mail addresses
collected from .wab, .adb, .tbb, .dbx, .asp, .php,
.sht, .htm, .txt files to distribute infected
worm arrives as an e-mail attachment. The
infected attachment name, subject and message
body is randomly chosen by the worm. The
worm also spreads using KaZaA P2P network.
infected mail sample is given below.
The message subject will
contain the string "error",
"server report", mail delivery
error message or random characters. When the
infected attachment is executed, it displays
garbage of text using Notepad.exe and copies
itself to Windows system folder as "taskmon.exe"
in the background. It also drops a backdoor file
shimgapi.dll in the system folder.
registry run section to load automatically on the
next startup. The registry modification is given
By default, %SYSTEM% will be C:\Windows\System in
case of Windows 95/98/ME, C:\Winnt\System32 in
case of Windows NT/2000 and C:\Windows\System32
in case of Windows XP ]
worm also creates following additional key to run
the backdoor program.
"(Default)" = %SysDir%\shimgapi.dll
Mydoom worm contains
backdoor abilities and it allows hackers to
connect to TCP port 3127 on the infected system.
It contains payload to perform to DoS attack on
www.sco.com. Mydoom worm is detected on 26th
How can I protect my
Solo has incorporated
taskmon.exe in its signature file to protect
users from this worm attack. Solo antivirus
registered users are already protected from this
Worm. Make sure that you have installed
registered version of Solo Antivirus to protect
your system from all virus threats.
to remove this Worm?
antivirus can detect and remove W32.Mydoom.A@mm
worm safely. If you are already infected
with this Worm, you can remove it from your
computer using Solo Antivirus software.
Use the following link to Download
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