Home / malware Adware.NaviPromo.Gen.3
First posted on 21 November 2011.
Source: BitDefenderAliases :
Adware.NaviPromo.Gen.3 is also known as W32/Skintrim.fa!tr, Trojan:Win32/Skintrim, Skintrim.gen, Trojan.Packed.669, Win32:Navipo, [Trj].
Explanation :
The Adware.NaviPromo malware family is an advanced and difficult-to-detect adware that runs silently on the infected computer. It uses rootkit techniques to hide its files on disk and memory. It also hides its registry entries.
This malware comes bundled with several software which can be downloaded from the following sites and is installed along with them.
* netgamebox.com
* ediaplayer.com
* planet.com
* skinner.com
* stro.com
* cord.com
* ngerskinner.com
Adware.Navipromo is usualy found in %SYSTEM% or C:Documents and Settings[USER]Local SettingsApplication Data
After first execution, it creates and hides one or more aditional files in the same directory, ending with
* [random_name].dat
* [random_name]_nav.dat
* [random_name]_navps.dat
* [random_name]_navup.dat
* [random_name]_navtmp.dat
* [random_name]_m2s.xml
* [random_name]_m2s.zl
It injects code into explorer.exe process and connects to the internet.NaviPromo monitors your browsing habits, sends this data to its creators and then attacks your desktop with numerous pop-up advertisements that is somewhat related with the websites you usually visit.
It might also create: %WINDOWS% empmsksetup.log and download an executable ( self-update ) in %TEMPDIR%aup.tmp that containes attached the new random name of the file.
Adware.Navipromo may also create the following registry subkey:
HKEY_LOCAL_MACHINESoftwaremc
or
HKEY_CURRENT_USERSoftwarefcn
which contains information about the adware, and adds one registry
value ( hidden ):
[random_name] = "[PATH_TO_FILE][random_name].exe" [random_name]
to one of the following registry subkeys:
HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersionRun
HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionRunLast update 21 November 2011
