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Trojan.DownLoader45.59331
Added to the Dr.Web virus database:
2023-06-28
Virus description added:
2024-03-30
Technical Information
To ensure autorun and distribution
Creates or modifies the following files
<SYSTEM32>\tasks\rockettab
<SYSTEM32>\tasks\rockettab update task
Malicious functions
Terminates or attempts to terminate
the following user processes:
Modifies settings of Windows Internet Explorer
[HKCU\Software\Microsoft\windows\CurrentVersion\Internet Settings] 'ProxyEnable' = '00000001'
[HKCU\Software\Microsoft\windows\CurrentVersion\Internet Settings] 'ProxyServer' = 'http=127.0.0.1:49220;https=127.0.0.1:49220;'
[HKCU\Software\Microsoft\windows\CurrentVersion\Internet Settings] 'ProxyOverride' = '<-loopback>'
Modifies file system
Creates the following files
%TEMP%\system.data.sqlite.dll
%ProgramFiles(x86)%\search extensions\config.dat
%APPDATA%\mozilla\firefox\profiles\bcjnbgva.default\key3.db
%APPDATA%\mozilla\firefox\profiles\bcjnbgva.default\cert8.db
%APPDATA%\mozilla\firefox\profiles\bcjnbgva.default\secmod.db
%APPDATA%\microsoft\systemcertificates\my\keys\4254821ef83f1bb1b3defd1f4960ff92654631d8
%APPDATA%\microsoft\systemcertificates\my\certificates\43251871b960b36d6cc4cc5810e913bad0305562
%ProgramFiles(x86)%\search extensions\trustedroot.cer
%APPDATA%\microsoft\crypto\rsa\s-1-5-21-1238866942-1249195528-555854008-1000\7b90a71bfc56f2582e916a51aed6df9a_d4602615-9d50-4880-be41-678935e93eaa
%ProgramFiles(x86)%\search extensions\uninstall.exe
%ProgramFiles(x86)%\search extensions\resources\softokn3.dll
%ProgramFiles(x86)%\search extensions\resources\smime3.dll
%ProgramFiles(x86)%\search extensions\resources\nss3.dll
%ProgramFiles(x86)%\search extensions\resources\libplds4.dll
%LOCALAPPDATA%\microsoft\windows\history\low\history.ie5\index.dat
nul
%ProgramFiles(x86)%\search extensions\resources\libplc4.dll
%ProgramFiles(x86)%\search extensions\resources\libnspr4.dll
%LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\cjluf3hd\desktop.ini
%ProgramFiles(x86)%\search extensions\resources\certutil.exe
%LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\3p7e9ssp\desktop.ini
%ProgramFiles(x86)%\search extensions\makecert.exe
%LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\41owb8t5\desktop.ini
%LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\yc63tg3b\desktop.ini
%LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\index.dat
%LOCALAPPDATA%\microsoft\windows\history\low\history.ie5\desktop.ini
%LOCALAPPDATA%\microsoft\windows\history\low\desktop.ini
%ProgramFiles(x86)%\search extensions\client.exe
%ProgramFiles(x86)%\search extensions\certmanager.exe
%LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\desktop.ini
%LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\desktop.ini
%APPDATA%\microsoft\windows\cookies\low\index.dat
%TEMP%\system.data.sqlite61965.dll
Sets the 'hidden' attribute to the following files
%LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\desktop.ini
%LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\desktop.ini
%LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\yc63tg3b\desktop.ini
%LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\41owb8t5\desktop.ini
%LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\3p7e9ssp\desktop.ini
%LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\cjluf3hd\desktop.ini
%LOCALAPPDATA%\microsoft\windows\history\low\history.ie5\desktop.ini
%LOCALAPPDATA%\microsoft\windows\history\low\desktop.ini
Deletes itself.
Network activity
Connects to
'dv######8kcex.centahost.com':80
'google.com':443
'pk#.goog':80
'd2#######cnor2.webhostoid.com':80
'localhost':49220
'dv######dd5wo.webhosteo.com':80
'ma####search.com':80
TCP
HTTP GET requests
http://dv######8kcex.centahost.com/impression.do/?ev#############################################################################################################################################...
http://pk#.goog/gsr1/gsr1.crt
http://d2#######cnor2.webhostoid.com/Update/Filter?us############################################################################################################################################...
http://dv######8kcex.centahost.com/impression.do/?
http://ww##.#####t2jgcnor2.webhostoid.com/Update/Filter?us#######################################################################################################################################...
http://ma####search.com/pointclicktrack-verification.html
http://dv######dd5wo.webhosteo.com/update?v=##############################################################################################################
http://dv######dd5wo.webhosteo.com/Validate/ValidateHomepage?Us###############################################################################################################
http://dv######dd5wo.webhosteo.com/nortonsw_83301ed0-61bf-0.html
http://dv######8kcex.centahost.com/impression.do/?us#############################################################################################################################################...
HTTP POST requests
http://dv######dd5wo.webhosteo.com/home/validatehosts?Us####################################################################################################
http://dv######dd5wo.webhosteo.com/Secure/ValidateExtensions?Us####################################################################################################
Other
'google.com':443
'localhost':49221
'localhost':49223
'localhost':49225
'localhost':49227
'localhost':49228
'localhost':49229
'localhost':49230
'localhost':49233
'localhost':49237
'localhost':49239
'localhost':49241
'localhost':49243
'localhost':49245
UDP
DNS ASK po##.ntp.org
DNS ASK dv######8kcex.centahost.com
DNS ASK google.com
DNS ASK pk#.goog
DNS ASK dt######mjbdj.plahost.com
DNS ASK d2#######cnor2.webhostoid.com
DNS ASK ww##.#####t2jgcnor2.webhostoid.com
DNS ASK dv######dd5wo.webhosteo.com
DNS ASK ma####search.com
'po##.ntp.org':123
Miscellaneous
Adds a root certificate
Searches for the following windows
ClassName: '' WindowName: 'Security Warning'
ClassName: '' WindowName: 'Advertencia de seguridad'
ClassName: '' WindowName: 'セキュリティ警告'
ClassName: '' WindowName: 'Sicherheitswarnung'
ClassName: '' WindowName: 'Avertissement de sГ©curitГ©'
Creates and executes the following
'%ProgramFiles(x86)%\search extensions\certmanager.exe' -r -ss my -n "CN=DO_NOT_TRUST_FiddlerRoot, O=DO_NOT_TRUST, OU=Created by http://www.fiddler2.com" -sky signature -eku 1.3.6.1.5.5.7.3.1 -h 1 -cy authority -a sha1 -m 132 "%ProgramFiles(x86)%\Se...
'%ProgramFiles(x86)%\search extensions\makecert.exe' -r -ss my -n "CN=DO_NOT_TRUST_FiddlerRoot, O=DO_NOT_TRUST, OU=Created by http://www.fiddler2.com" -sky signature -eku 1.3.6.1.5.5.7.3.1 -h 1 -cy authority -a sha256 -m 132 "%ProgramFiles(x86)%\...
'%ProgramFiles(x86)%\search extensions\resources\certutil.exe' -A -n "DO_NOT_TRUST_FiddlerRoot" -t "TCu,TCu,TCu" -i "%ProgramFiles(x86)%\Search Extensions\TrustedRoot.cer" -d "%APPDATA%\Mozilla\Firefox\Profiles\bcjnbgva.default"
'%ProgramFiles(x86)%\search extensions\client.exe' /Preferred=true
'%ProgramFiles(x86)%\search extensions\uninstall.exe' /CheckUpdate=true /FirstRun=true
'%ProgramFiles(x86)%\search extensions\resources\certutil.exe' -V -n "DO_NOT_TRUST_FiddlerRoot" -u C -e -d "%APPDATA%\Mozilla\Firefox\Profiles\bcjnbgva.default"
'%WINDIR%\syswow64\cmd.exe' /C ping 1.1.1.1 -n 1 -w 1800000 > Nul & "%ProgramFiles(x86)%\Search Extensions\uninstall.exe" /CheckUpdate=true /FirstRun=true' (with hidden window)
'%WINDIR%\syswow64\cmd.exe' /C ping 1.1.1.1 -n 1 -w 3000 > Nul & Del "<Full path to file>"' (with hidden window)
Executes the following
'%WINDIR%\syswow64\rundll32.exe' "%WINDIR%\syswow64\wininet.dll",DispatchAPICall 1
'<SYSTEM32>\rundll32.exe' "<SYSTEM32>\WININET.dll",DispatchAPICall 1
'%WINDIR%\syswow64\cmd.exe' /C ping 1.1.1.1 -n 1 -w 1800000 > Nul & "%ProgramFiles(x86)%\Search Extensions\uninstall.exe" /CheckUpdate=true /FirstRun=true
'%WINDIR%\syswow64\ping.exe' 1.1.1.1 -n 1 -w 1800000
'%WINDIR%\syswow64\cmd.exe' /C ping 1.1.1.1 -n 1 -w 3000 > Nul & Del "<Full path to file>"
'%WINDIR%\syswow64\ping.exe' 1.1.1.1 -n 1 -w 3000
Curing recommendations
Windows
macOS
Linux
Android
If the operating system (OS) can be loaded (either normally or in safe mode), download Dr.Web Security Space and run a full scan of your computer and removable media you use. More about Dr.Web Security Space .
If you cannot boot the OS, change the BIOS settings to boot your system from a CD or USB drive. Download the image of the emergency system repair disk Dr.Web® LiveDisk , mount it on a USB drive or burn it to a CD/DVD. After booting up with this media, run a full scan and cure all the detected threats.
Use Dr.Web Anti-virus for macOS to run a full scan of your Mac.
If the mobile device is operating normally, download and install Dr.Web for Android. Run a full system scan and follow recommendations to neutralize the detected threats.
If the mobile device has been locked by Android.Locker ransomware (the message on the screen tells you that you have broken some law or demands a set ransom amount; or you will see some other announcement that prevents you from using the handheld normally), do the following:
Load your smartphone or tablet in the safe mode (depending on the operating system version and specifications of the particular mobile device involved, this procedure can be performed in various ways; seek clarification from the user guide that was shipped with the device, or contact its manufacturer);
Once you have activated safe mode, install the Dr.Web for Android onto the infected handheld and run a full scan of the system; follow the steps recommended for neutralizing the threats that have been detected;
Switch off your device and turn it on as normal.
Find out more about Dr.Web for Android
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