Win32.HLLW.Autohit.15228

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run] 'csrcs' = '<SYSTEM32>\csrcs.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices] 'csrcs' = '<SYSTEM32>\csrcs.exe'

Malicious functions:

To complicate detection of its presence in the operating system,

forces the system hide from view:

blocks the following features:

Creates and executes the following:

Executes the following:

Modifies file system :

Creates the following files:

<LS_APPDATA>\Microsoft\Windows\Temporary Internet Files\Content.IE5\YF7T7AK2\checkip_dyndns_org[1]
<LS_APPDATA>\Microsoft\Windows\Temporary Internet Files\Content.IE5\YF7T7AK2\n09230945[1].asp
<LS_APPDATA>\Microsoft\Windows\Temporary Internet Files\Content.IE5\6P5SDOMI\n09230945[1].asp
%TEMP%\~ip.tmp
<LS_APPDATA>\Microsoft\Windows\Temporary Internet Files\Content.IE5\6P5SDOMI\eny[1].htm
<LS_APPDATA>\Microsoft\Windows\Temporary Internet Files\Content.IE5\SOXZEUJX\xny[1].htm
<LS_APPDATA>\Microsoft\Windows\Temporary Internet Files\Content.IE5\BOWDBRP7\whatismyip_com[1]
<SYSTEM32>\csrcs.exe
%TEMP%\kkzayez
%TEMP%\aut9185.tmp
%TEMP%\aut9903.tmp
<SYSTEM32>\autorun.i
<SYSTEM32>\autorun.in
%TEMP%\knwlnpc

Sets the 'hidden' attribute to the following files:

Deletes the following files:

<LS_APPDATA>\Microsoft\Windows\Temporary Internet Files\Content.IE5\6P5SDOMI\n09230945[1].asp
<LS_APPDATA>\Microsoft\Windows\Temporary Internet Files\Content.IE5\YF7T7AK2\n09230945[1].asp
%TEMP%\~ip.tmp
%TEMP%\knwlnpc
%TEMP%\aut9185.tmp
%TEMP%\kkzayez
%TEMP%\aut9903.tmp

Network activity:

Connects to:

TCP:

HTTP GET requests:

UDP:

Miscellaneous:

Searches for the following windows: