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Trojan.DownLoader12.50734
Added to the Dr.Web virus database:
2015-03-27
Virus description added:
2015-03-27
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Bench Communicator Watcher' = '%PROGRAM_FILES%\Bench\Proxy\pwdg.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Bench Settings Cleaner' = '%PROGRAM_FILES%\Bench\Proxy\cl.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce] 'Clean Browser' = ''
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce] 'Clean Browser-repairJob' = 'wscript.exe "<LS_APPDATA>\Clean Browser\repair.js" "Clean Browser-repairJob"'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'BService' = '%PROGRAM_FILES%\Bench\BService\1.1\bservice.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Wd' = '%PROGRAM_FILES%\Bench\Wd\wd.exe'
Creates or modifies the following files:
%WINDIR%\Tasks\bench-S-1-5-21-2832440558-3064306045-1455513625-1000.job
%WINDIR%\Tasks\bench-sys.job
Malicious functions:
Creates and executes the following:
'%PROGRAM_FILES%\Bench\Updater\updater.exe' /pid=0xdfc /log
'%PROGRAM_FILES%\Bench\Wd\wd.exe'
'<LS_APPDATA>\Clean Browser\sqlite3.exe' 0x100 sqlite3.exe
'<LS_APPDATA>\Clean Browser\storageedit.exe' /pid=0xb74 /log
'<LS_APPDATA>\Clean Browser\gpedit.exe' chrome add-extension pidnkkbbdmichdcoaodhhjkaiejjcpjk http://pi########ichdcoaodhhjkaiejjcpjk/check/.eJwNyUsKwCAMANG7ZC2l3XqZEk3AGH-oLYXSu9flvHlh4lCw4EOvmcHAzX1ILYuObV8tZUxMiTvY2S82wM88hdZvQkXVOcriA_mKlUKIisIx-hYVvh_cNCEW.CyeGDzv2byWCkvEnSxd1Ihs4P-A
'<LS_APPDATA>\Clean Browser\SoftwareDetector.exe' 0x8ac svchost.exe
'<LS_APPDATA>\Clean Browser\sqlite3.exe' "%APPDATA%\Roaming\Mozilla\Firefox\Profiles\fzv9i9tr.default\extensions.sqlite" " SELECT internal_id FROM addon WHERE id = '{F83DAA11-3C82-732E-0E37-79A084992F9A}' "
'%PROGRAM_FILES%\Bench\Updater\updater.exe' /pid=0xa40 /log
'%PROGRAM_FILES%\Bench\Updater\1.7.0.0\Updater.exe' 0xe08 dllhost.exe
'%PROGRAM_FILES%\Bench\Updater\1.7.0.0\updater.exe' 0x554 dllhost.exe
'%TEMP%\nss537D.tmp\nsF1C7.tmp' "<SYSTEM32>\cscript.exe" //Nologo "installer.js" install ie "%PROGRAM_FILES%\Clean Browser\" /product-name="Clean Browser" /installation-time="1427451361" /pid="99998" /zone="585003" /czoneid="12199" /nmhost-dir="%PROGRAM_FILES%\Bench\NmHost" /app-id="39013" /updateip="54.204.28.26" /version="1.0" /straoi="" /enable-extensions /enable-incognito /chrome-id="pidnkkbbdmichdcoaodhhjkaiejjcpjk" /chrome-update-url="http://pi########ichdcoaodhhjkaiejjcpjk/check/.eJwNyUsKwCAMANG7ZC2l3XqZEk3AGH-oLYXSu9flvHlh4lCw4EOvmcHAzX1ILYuObV8tZUxMiTvY2S82wM88hdZvQkXVOcriA_mKlUKIisIx-hYVvh_cNCEW.CyeGDzv2byWCkvEnSxd1Ihs4P-A" /close-chrome /close-firefox /close-ie
'<LS_APPDATA>\Clean Browser\sqlite3.exe' /pid=0xb60 /log
'<LS_APPDATA>\Clean Browser\sqlite3.exe'
'<LS_APPDATA>\Clean Browser\sqlite3.exe' "%APPDATA%\Roaming\Mozilla\Firefox\Profiles\fzv9i9tr.default\framework-f83daa11-3c82-732e-0e37-79a084992f9a.sqlite" "SELECT value FROM user_storage WHERE key='_GPL_zoneid';"
'<LS_APPDATA>\Clean Browser\storageedit.exe' ie {3A2F21B0-3C7F-4B51-94AC-AADE32B8D522} get _GPL_zoneid
'%PROGRAM_FILES%\Bench\Updater\1.7.0.0\Updater.exe' -runmode=addsystask
'%TEMP%\nss537D.tmp\ns9982.tmp' "<SYSTEM32>\cscript.exe" //Nologo "migrate.js" /iversion=20141023 /programfiles="%PROGRAM_FILES%" /localapps="<LS_APPDATA>" /chrome-dir="" /firefox-dir="<LS_APPDATA>\Clean Browser\firefox" /ie-dir="%PROGRAM_FILES%\Clean Browser" /product-name="Clean Browser" /installation-time="1427451361" /pid="99998" /zone="585003" /czoneid="" /nmhost-dir="%PROGRAM_FILES%\Bench\NmHost" /app-id="39013" /updateip="54.204.28.26" /version="1.0" /straoi="" /enable-extensions /enable-incognito /chrome-id="pidnkkbbdmichdcoaodhhjkaiejjcpjk" /chrome-update-url="http://pi########ichdcoaodhhjkaiejjcpjk/check/.eJwNyUsKwCAMANG7ZC2l3XqZEk3AGH-oLYXSu9flvHlh4lCw4EOvmcHAzX1ILYuObV8tZUxMiTvY2S82wM88hdZvQkXVOcriA_mKlUKIisIx-hYVvh_cNCEW.CyeGDzv2byWCkvEnSxd1Ihs4P-A" /close-chrome /close-firefox /close-ie
'<LS_APPDATA>\Clean Browser\SoftwareDetector.exe'
'<LS_APPDATA>\Clean Browser\sqlite3.exe' "<LS_APPDATA>\Google\Chrome\User Data\Default\Local Storage\chrome-extension_pidnkkbbdmichdcoaodhhjkaiejjcpjk_0.localstorage" "SELECT value FROM ItemTable WHERE key='_GPL_zoneid';"
'%PROGRAM_FILES%\Bench\Updater\updater.exe' -runmode=addtask
'%PROGRAM_FILES%\Bench\Updater\1.7.0.0\updater.exe' -runmode=addproduct -info="%TEMP%\nsiB11A.tmp"
'<LS_APPDATA>\Clean Browser\SoftwareDetector.exe' /pid=0x278 /log
'%TEMP%\nss537D.tmp\nsC0C6.tmp' "<SYSTEM32>\cscript.exe" //Nologo "installer.js" install chrome "" /product-name="Clean Browser" /installation-time="1427451361" /pid="99998" /zone="585003" /czoneid="12199" /nmhost-dir="%PROGRAM_FILES%\Bench\NmHost" /app-id="39013" /updateip="54.204.28.26" /version="1.0" /straoi="" /enable-extensions /enable-incognito /chrome-id="pidnkkbbdmichdcoaodhhjkaiejjcpjk" /chrome-update-url="http://pi########ichdcoaodhhjkaiejjcpjk/check/.eJwNyUsKwCAMANG7ZC2l3XqZEk3AGH-oLYXSu9flvHlh4lCw4EOvmcHAzX1ILYuObV8tZUxMiTvY2S82wM88hdZvQkXVOcriA_mKlUKIisIx-hYVvh_cNCEW.CyeGDzv2byWCkvEnSxd1Ihs4P-A" /close-chrome /close-firefox /close-ie
'%PROGRAM_FILES%\Bench\Updater\1.7.0.0\updater.exe' -runmode=addtask
'<LS_APPDATA>\Clean Browser\sqlite3.exe' /pid=0xb48 /log
'%PROGRAM_FILES%\Bench\Updater\updater.exe' -runmode=addproduct -info="%TEMP%\nsiB11A.tmp"
Executes the following:
'<SYSTEM32>\conhost.exe' /RegServer
'<SYSTEM32>\cscript.exe' /s "%PROGRAM_FILES%\Clean Browser\FrameworkBHO.dll"
'<SYSTEM32>\conhost.exe' /s "%PROGRAM_FILES%\Clean Browser\RequestHelper.dll"
'<SYSTEM32>\conhost.exe' "%APPDATA%\Roaming\Mozilla\Firefox\Profiles\fzv9i9tr.default\extensions.sqlite" " UPDATE addon SET defaultLocale = WHERE internal_id="
'<SYSTEM32>\cscript.exe' 0xb64 sqlite3.exe
'<SYSTEM32>\cscript.exe' //Nologo "installer.js" install ie "%PROGRAM_FILES%\Clean Browser\" /product-name="Clean Browser" /installation-time="1427451361" /pid="99998" /zone="585003" /czoneid="12199" /nmhost-dir="%PROGRAM_FILES%\Bench\NmHost" /app-id="39013" /updateip="54.204.28.26" /version="1.0" /straoi="" /enable-extensions /enable-incognito /chrome-id="pidnkkbbdmichdcoaodhhjkaiejjcpjk" /chrome-update-url="http://pi########ichdcoaodhhjkaiejjcpjk/check/.eJwNyUsKwCAMANG7ZC2l3XqZEk3AGH-oLYXSu9flvHlh4lCw4EOvmcHAzX1ILYuObV8tZUxMiTvY2S82wM88hdZvQkXVOcriA_mKlUKIisIx-hYVvh_cNCEW.CyeGDzv2byWCkvEnSxd1Ihs4P-A" /close-chrome /close-firefox /close-ie
'<SYSTEM32>\cscript.exe' 0xabc ns1bf4.tmp
'<SYSTEM32>\conhost.exe' -runmode=addproduct -info="<LS_APPDATA>\Clean Browser\info.xml"
'<SYSTEM32>\RAServer.exe' /pid=0xa78 /commits
'<SYSTEM32>\conhost.exe' netsh advfirewall firewall add rule name="proc.exe" protocol=TCP dir=in localip=127.0.0.1 remoteip=127.0.0.1 localport=3128 action=allow program="%PROGRAM_FILES%\Bench\Proxy\proc.exe"
'<SYSTEM32>\RAServer.exe' /offerraupdate
'<SYSTEM32>\svchost.exe' advfirewall firewall add rule name="pwdg.exe" protocol=TCP dir=in localip=127.0.0.1 remoteip=127.0.0.1 localport=3128 action=allow program="%PROGRAM_FILES%\Bench\Proxy\pwdg.exe"
'<SYSTEM32>\conhost.exe' "%APPDATA%\Roaming\Mozilla\Firefox\Profiles\fzv9i9tr.default\extensions.sqlite" " INSERT OR REPLACE INTO addon ( id, location, version, type, iconURL, defaultLocale, visible, active, userDisabled, appDisabled, pendingUninstall, applyBackgroundUpdates, bootstrap, skinnable, softDisabled ) VALUES ( '{F83DAA11-3C82-732E-0E37-79A084992F9A}', 'app-profile', '1.0', 'extension', 'chrome://framework-f83daa11-3c82-732e-0e37-79a084992f9a/content/icons/icon32.png', '24', 1, 1, 0, 0, 0, 1, 1, 0, 0 ) "
'<SYSTEM32>\conhost.exe' "<SYSTEM32>\cscript.exe" //Nologo "main_installer.js" install /product-name="Clean Browser" /installation-time="1427451361" /pid="99998" /zone="585003" /czoneid="12199" /nmhost-dir="%PROGRAM_FILES%\Bench\NmHost" /app-id="39013" /updateip="54.204.28.26" /version="1.0" /straoi="" /enable-extensions /enable-incognito /chrome-id="pidnkkbbdmichdcoaodhhjkaiejjcpjk" /chrome-update-url="http://pi########ichdcoaodhhjkaiejjcpjk/check/.eJwNyUsKwCAMANG7ZC2l3XqZEk3AGH-oLYXSu9flvHlh4lCw4EOvmcHAzX1ILYuObV8tZUxMiTvY2S82wM88hdZvQkXVOcriA_mKlUKIisIx-hYVvh_cNCEW.CyeGDzv2byWCkvEnSxd1Ihs4P-A" /close-chrome /close-firefox /close-ie
'<SYSTEM32>\cscript.exe' //Nologo "installer.js" install chrome "" /product-name="Clean Browser" /installation-time="1427451361" /pid="99998" /zone="585003" /czoneid="12199" /nmhost-dir="%PROGRAM_FILES%\Bench\NmHost" /app-id="39013" /updateip="54.204.28.26" /version="1.0" /straoi="" /enable-extensions /enable-incognito /chrome-id="pidnkkbbdmichdcoaodhhjkaiejjcpjk" /chrome-update-url="http://pi########ichdcoaodhhjkaiejjcpjk/check/.eJwNyUsKwCAMANG7ZC2l3XqZEk3AGH-oLYXSu9flvHlh4lCw4EOvmcHAzX1ILYuObV8tZUxMiTvY2S82wM88hdZvQkXVOcriA_mKlUKIisIx-hYVvh_cNCEW.CyeGDzv2byWCkvEnSxd1Ihs4P-A" /close-chrome /close-firefox /close-ie
'<SYSTEM32>\conhost.exe'
'<SYSTEM32>\cscript.exe' //Nologo "migrate.js" /iversion=20141023 /programfiles="%PROGRAM_FILES%" /localapps="<LS_APPDATA>" /chrome-dir="" /firefox-dir="<LS_APPDATA>\Clean Browser\firefox" /ie-dir="%PROGRAM_FILES%\Clean Browser" /product-name="Clean Browser" /installation-time="1427451361" /pid="99998" /zone="585003" /czoneid="" /nmhost-dir="%PROGRAM_FILES%\Bench\NmHost" /app-id="39013" /updateip="54.204.28.26" /version="1.0" /straoi="" /enable-extensions /enable-incognito /chrome-id="pidnkkbbdmichdcoaodhhjkaiejjcpjk" /chrome-update-url="http://pi########ichdcoaodhhjkaiejjcpjk/check/.eJwNyUsKwCAMANG7ZC2l3XqZEk3AGH-oLYXSu9flvHlh4lCw4EOvmcHAzX1ILYuObV8tZUxMiTvY2S82wM88hdZvQkXVOcriA_mKlUKIisIx-hYVvh_cNCEW.CyeGDzv2byWCkvEnSxd1Ihs4P-A" /close-chrome /close-firefox /close-ie
'<SYSTEM32>\taskhost.exe' net.exe start schedule
'<SYSTEM32>\net1.exe' start schedule
'<SYSTEM32>\taskhost.exe' SYSTEM
'<SYSTEM32>\conhost.exe' "<SYSTEM32>\cscript.exe" //Nologo "installer.js" install firefox "<LS_APPDATA>\Clean Browser\firefox\" /product-name="Clean Browser" /installation-time="1427451361" /pid="99998" /zone="585003" /czoneid="12199" /nmhost-dir="%PROGRAM_FILES%\Bench\NmHost" /app-id="39013" /updateip="54.204.28.26" /version="1.0" /straoi="" /enable-extensions /enable-incognito /chrome-id="pidnkkbbdmichdcoaodhhjkaiejjcpjk" /chrome-update-url="http://pi########ichdcoaodhhjkaiejjcpjk/check/.eJwNyUsKwCAMANG7ZC2l3XqZEk3AGH-oLYXSu9flvHlh4lCw4EOvmcHAzX1ILYuObV8tZUxMiTvY2S82wM88hdZvQkXVOcriA_mKlUKIisIx-hYVvh_cNCEW.CyeGDzv2byWCkvEnSxd1Ihs4P-A" /close-chrome /close-firefox /close-ie
'<SYSTEM32>\cscript.exe' //Nologo "installer.js" install firefox "<LS_APPDATA>\Clean Browser\firefox\" /product-name="Clean Browser" /installation-time="1427451361" /pid="99998" /zone="585003" /czoneid="12199" /nmhost-dir="%PROGRAM_FILES%\Bench\NmHost" /app-id="39013" /updateip="54.204.28.26" /version="1.0" /straoi="" /enable-extensions /enable-incognito /chrome-id="pidnkkbbdmichdcoaodhhjkaiejjcpjk" /chrome-update-url="http://pi########ichdcoaodhhjkaiejjcpjk/check/.eJwNyUsKwCAMANG7ZC2l3XqZEk3AGH-oLYXSu9flvHlh4lCw4EOvmcHAzX1ILYuObV8tZUxMiTvY2S82wM88hdZvQkXVOcriA_mKlUKIisIx-hYVvh_cNCEW.CyeGDzv2byWCkvEnSxd1Ihs4P-A" /close-chrome /close-firefox /close-ie
'<SYSTEM32>\svchost.exe' -k secsvcs
'<SYSTEM32>\conhost.exe' "<SYSTEM32>\cscript.exe" //Nologo "chrome_gp_update.js" /product-name="Clean Browser" /installation-time="1427451361" /pid="99998" /zone="585003" /czoneid="12199" /nmhost-dir="%PROGRAM_FILES%\Bench\NmHost" /app-id="39013" /updateip="54.204.28.26" /version="1.0" /straoi="" /enable-extensions /enable-incognito /chrome-id="pidnkkbbdmichdcoaodhhjkaiejjcpjk" /chrome-update-url="http://pi########ichdcoaodhhjkaiejjcpjk/check/.eJwNyUsKwCAMANG7ZC2l3XqZEk3AGH-oLYXSu9flvHlh4lCw4EOvmcHAzX1ILYuObV8tZUxMiTvY2S82wM88hdZvQkXVOcriA_mKlUKIisIx-hYVvh_cNCEW.CyeGDzv2byWCkvEnSxd1Ihs4P-A" /close-chrome /close-firefox /close-ie
'<SYSTEM32>\cscript.exe' //Nologo "chrome_gp_update.js" /product-name="Clean Browser" /installation-time="1427451361" /pid="99998" /zone="585003" /czoneid="12199" /nmhost-dir="%PROGRAM_FILES%\Bench\NmHost" /app-id="39013" /updateip="54.204.28.26" /version="1.0" /straoi="" /enable-extensions /enable-incognito /chrome-id="pidnkkbbdmichdcoaodhhjkaiejjcpjk" /chrome-update-url="http://pi########ichdcoaodhhjkaiejjcpjk/check/.eJwNyUsKwCAMANG7ZC2l3XqZEk3AGH-oLYXSu9flvHlh4lCw4EOvmcHAzX1ILYuObV8tZUxMiTvY2S82wM88hdZvQkXVOcriA_mKlUKIisIx-hYVvh_cNCEW.CyeGDzv2byWCkvEnSxd1Ihs4P-A" /close-chrome /close-firefox /close-ie
Terminates or attempts to terminate
the following user processes:
firefox.exe
chrome.exe
iexplore.exe
Modifies file system :
Creates the following files:
Deletes the following files:
<LS_APPDATA>\Clean Browser\info.xml
%TEMP%\nss537D.tmp\md5dll.dll
%TEMP%\nss537D.tmp\ns5D5.tmp
%TEMP%\nss537D.tmp\ns1BF4.tmp
%TEMP%\nss537D.tmp\nsDownloadCv.dll
%TEMP%\nss537D.tmp\nsProcess2.dll
%TEMP%\nss537D.tmp\System.dll
%TEMP%\nss537D.tmp\nsExec.dll
%TEMP%\nss537D.tmp\nsProcess.dll
%TEMP%\nsiB11A.tmp
%TEMP%\nss537D.tmp\nsBACC.tmp
%TEMP%\nss537D.tmp\ns9982.tmp
%TEMP%\nss537D.tmp\nsB12A.tmp
%TEMP%\nss537D.tmp\nsC0C6.tmp
%TEMP%\nss537D.tmp\nsD6F6.tmp
%TEMP%\nss537D.tmp\nsF1C7.tmp
%TEMP%\nss537D.tmp\nsD1E6.tmp
%APPDATA%\Roaming\Mozilla\Firefox\Profiles\fzv9i9tr.default\extensions.sqlite-journal
Modifies the HOSTS file.
Network activity:
Connects to:
'localhost':3128
'54.##4.28.26':80
TCP:
HTTP GET requests:
http://pi########ichdcoaodhhjkaiejjcpjk/latest/crx/.eJwNyUsKwCAMANG7ZC2l3XqZEk3AGH-oLYXSu9flvHlh4lCw4EOvmcHAzX1ILYuObV8tZUxMiTvY2S82wM88hdZvQkXVOcriA_mKlUKIisIx-hYVvh_cNCEW.CyeGDzv2byWCkvEnSxd1Ihs4P-A via 54.##4.28.26
UDP:
DNS ASK cl######wser-a.akamaihd.net
DNS ASK co######ache-a.akamaihd.net
DNS ASK www.in####lping5.info
DNS ASK dn#.##ftncsi.com
Miscellaneous:
Searches for the following windows:
ClassName: '' WindowName: 'Clean Browser Tray Icon'
ClassName: 'Shell_TrayWnd' WindowName: ''
Recommandations pour le traitement
Windows
macOS
Linux
Android
Si le système d'exploitation peut être démarré (en mode normal ou en mode sans échec), téléchargez Dr.Web Security Space et lancez un scan complet de votre ordinateur et de tous les supports amovibles que vous utilisez. En savoir plus sur Dr.Web Security Space .
Si le démarrage du système d'exploitation est impossible, veuillez modifier les paramètres du BIOS de votre ordinateur pour démarrer votre ordinateur via CD/DVD ou clé USB. Téléchargez l'image du disque de secours de restauration du système Dr.Web® LiveDisk ou l'utilitaire pour enregistrer Dr.Web® LiveDisk sur une clé USB, puis préparez la clé USB appropriée. Démarrez l'ordinateur à l'aide de cette clé et lancez le scan complet et le traitement des menaces détectées.
Si votre appareil mobile fonctionne correctement, veuillez télécharger et installer sur votre appareil mobile Dr.Web pour Android . Lancez un scan complet et suivez les recommandations sur la neutralisation des menaces détectées.
Si l'appareil mobile est bloqué par le Trojan de la famille Android.Locker (un message sur la violation grave de la loi ou la demande d'une rançon est affiché sur l'écran de l'appareil mobile), procédez comme suit:
démarrez votre Smartphone ou votre tablette en mode sans échec (si vous ne savez pas comment faire, consultez la documentation de l'appareil mobile ou contactez le fabricant) ;
puis téléchargez et installez sur votre appareil mobile Dr.Web pour Android et lancez un scan complet puis suivez les recommandations sur la neutralisation des menaces détectées ;
Débranchez votre appareil et rebranchez-le.
En savoir plus sur Dr.Web pour Android
Téléchargez Dr.Web pour Android
Gratuit pour 3 mois
Tous les composants de protection
Renouvellement de la démo via AppGallery/Google Pay
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