Trojan.DownLoader23.25778

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Tracking Redirector IP Superfetch Panel' = '<SYSTEM32>\cfqivbwrzzy.exe'

Creates the following services:

[<HKLM>\SYSTEM\ControlSet001\Services\Shadow Wired RPC Policy Coordinator] 'ImagePath' = '<SYSTEM32>\cfqivbwrzzy.exe'
[<HKLM>\SYSTEM\ControlSet001\Services\Shadow Wired RPC Policy Coordinator] 'Start' = '00000002'

Malicious functions:

To complicate detection of its presence in the operating system,

blocks the following features:

Windows Security Center

Executes the following:

'<SYSTEM32>\fnffljcdpshe.exe' "<SYSTEM32>\cfqivbwrzzy.exe"
'%WINDIR%\Temp\zvyye1c44e0wosrx.exe' -r 48328 tcp
'%TEMP%\zvyye1c3rhlwosrxjekiht.exe'
'<SYSTEM32>\cfqivbwrzzy.exe'

Modifies file system:

Creates the following files:

<SYSTEM32>\dxgnkgsym\run
<SYSTEM32>\dxgnkgsym\rng
%WINDIR%\Temp\zvyye1c44e0wosrx.exe
<SYSTEM32>\dxgnkgsym\cfg
<SYSTEM32>\fnffljcdpshe.exe
%TEMP%\zvyye1c3rhlwosrxjekiht.exe
<SYSTEM32>\dxgnkgsym\tst
<SYSTEM32>\cfqivbwrzzy.exe
<SYSTEM32>\dxgnkgsym\etc

Sets the 'hidden' attribute to the following files:

<SYSTEM32>\fnffljcdpshe.exe
<SYSTEM32>\cfqivbwrzzy.exe

Deletes the following files:

%WINDIR%\Temp\zvyye1c44e0wosrx.exe
<DRIVERS>\etc\hosts
%TEMP%\zvyye1c3rhlwosrxjekiht.exe

Substitutes the HOSTS file.

Network activity:

Connects to:

'wi###reen.net':80
'du###ift.net':80
'wi###ift.net':80
'du###ound.net':80
'wi###ound.net':80
'du###reen.net':80
'mi###ound.net':80
'tr###green.net':80
'mi###reen.net':80
'tr###hand.net':80
'mi###and.net':80
'tr###sound.net':80
'wi###and.net':80
'si###hand.net':80
'th###hand.net':80
'si###sound.net':80
'ca###reen.net':80
'he###ift.net':80
'ca###ift.net':80
'si###lift.net':80
'th###lift.net':80
'du###and.net':80
'th###sound.net':80
'si###green.net':80
'th###green.net':80
'tr###lift.net':80
'al###being.net':80
'ca####nbring.net':80
'pr####tbottom.net':80
'si###ail.net':80
'be##lxc.com':80
'ri###nstorm.net':80
'mo###ugust.net':80
'le###form.net':80
'cr#####onaraminta.net':80
'mo###olor.net':80
'ab###ell.net':80
'mi###hown.net':80
'me###ore.net':80
'da###ore.net':80
'cl###wore.net':80
'da###ail.net':80
'mi###ift.net':80
'da###here.net':80
'cl###where.net':80
'si###here.net':80
'me###here.net':80
'si###ore.net':80
'cl###mail.net':80
'da###oad.net':80
'cl###road.net':80

TCP:

HTTP GET requests:

http://wi###reen.net/index.php
http://du###ift.net/index.php
http://wi###ift.net/index.php
http://du###ound.net/index.php
http://wi###ound.net/index.php
http://du###reen.net/index.php
http://mi###ound.net/index.php
http://tr###green.net/index.php
http://mi###reen.net/index.php
http://tr###hand.net/index.php
http://mi###and.net/index.php
http://tr###sound.net/index.php
http://wi###and.net/index.php
http://si###hand.net/index.php
http://th###hand.net/index.php
http://si###sound.net/index.php
http://ca###reen.net/index.php
http://he###ift.net/index.php
http://ca###ift.net/index.php
http://si###lift.net/index.php
http://th###lift.net/index.php
http://du###and.net/index.php
http://th###sound.net/index.php
http://si###green.net/index.php
http://th###green.net/index.php
http://tr###lift.net/index.php
http://al###being.net/index.php
http://ca####nbring.net/index.php
http://pr####tbottom.net/index.php
http://si###ail.net/index.php
http://be##lxc.com/index.php
http://ri###nstorm.net/index.php
http://mo###ugust.net/index.php
http://le###form.net/index.php
http://cr#####onaraminta.net/index.php
http://mo###olor.net/index.php
http://ab###ell.net/index.php
http://mi###hown.net/index.php
http://me###ore.net/index.php
http://da###ore.net/index.php
http://cl###wore.net/index.php
http://da###ail.net/index.php
http://mi###ift.net/index.php
http://da###here.net/index.php
http://cl###where.net/index.php
http://si###here.net/index.php
http://me###here.net/index.php
http://si###ore.net/index.php
http://cl###mail.net/index.php
http://da###oad.net/index.php
http://cl###road.net/index.php

UDP:

DNS ASK du###reen.net
DNS ASK wi###reen.net
DNS ASK du###ift.net
DNS ASK wi###and.net
DNS ASK du###ound.net
DNS ASK wi###ound.net
DNS ASK wi###ift.net
DNS ASK mi###ound.net
DNS ASK tr###green.net
DNS ASK mi###reen.net
DNS ASK tr###hand.net
DNS ASK mi###and.net
DNS ASK tr###sound.net
DNS ASK ca###ift.net
DNS ASK si###hand.net
DNS ASK th###hand.net
DNS ASK he###reen.net
DNS ASK ca###reen.net
DNS ASK he###ift.net
DNS ASK si###sound.net
DNS ASK si###lift.net
DNS ASK th###lift.net
DNS ASK du###and.net
DNS ASK th###sound.net
DNS ASK si###green.net
DNS ASK th###green.net
DNS ASK tr###lift.net
DNS ASK al###being.net
DNS ASK ca####nbring.net
DNS ASK pr####tbottom.net
DNS ASK si###ail.net
DNS ASK be##lxc.com
DNS ASK ri###nstorm.net
DNS ASK mo###ugust.net
DNS ASK le###form.net
DNS ASK cr#####onaraminta.net
DNS ASK mo###olor.net
DNS ASK ab###ell.net
DNS ASK mi###hown.net
DNS ASK me###ore.net
DNS ASK da###ore.net
DNS ASK cl###wore.net
DNS ASK da###ail.net
DNS ASK mi###ift.net
DNS ASK da###here.net
DNS ASK cl###where.net
DNS ASK si###here.net
DNS ASK me###here.net
DNS ASK si###ore.net
DNS ASK cl###mail.net
DNS ASK da###oad.net
DNS ASK cl###road.net
'23#.#55.255.250':1900

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