What is CheckMeUp?
The Malwarebytes research team has determined that CheckMeUp is a browser hijacker. These so-called "hijackers" manipulate your browser(s), for example to change your startpage or searchscopes, so that the affected browser visits their site or one of their choice. This one also displays advertisements.
How do I know if my computer is affected by CheckMeUp?
You may see this entry in your list of installed software:
and these browser add-ons :
How did CheckMeUp get on my computer?
Browser hijackers use different methods for distributing themselves. This particular one was bundled with other software.
How do I remove CheckMeUp?
Our program Malwarebytes Anti-Malware can detect and remove this potentially unwanted program.
- Please download Malwarebytes Anti-Malware to your desktop.
- Double-click mbam-setup-version.exe and follow the prompts to install the program.
- At the end, be sure a check-mark is placed next to the following:
- Enable free trial of Malwarebytes Anti-Malware Premium
- Launch Malwarebytes Anti-Malware
- Then click Finish.
- If an update is found, you will be prompted to download and install the latest version.
- Once the program has loaded, select Scan now. Or select the Threat Scan from the Scan menu.
- When the scan is complete , make sure that everything is set to "Quarantine", and click Apply Actions.
- Reboot your computer if prompted.
- No, Malwarebytes' Anti-Malware removes CheckMeUp completely.
We hope our application and this guide have helped you eradicate this hijacker.
As you can see below the full version of Malwarebytes Anti-Malware would have protected you against the CheckMeUp hijacker. It would have warned you before the rogue could install itself, giving you a chance to stop it before it became too late.
Technical details for experts
Signs in a HijackThis log:
O2 - BHO: CheckMeUp - {59D7C4A9-7BD6-C86D-030B-B240716368AF} - C:\Program Files\ver5CheckMeUp\184.dll O23 - Service: CheckMeUp - Unknown owner - C:\Program Files\ver5CheckMeUp\G3RH184.exeAlterations made by the installer:
File system details --------------------------------------------- Adds the folder C:\Program Files\Mozilla Firefox\browser\extensions\9654538aa6124877979b03b4d4117045@jetpack Adds the file bootstrap.js"="9/12/2014 12:37 PM, 12368 bytes Adds the file harness-options.json"="9/12/2014 12:37 PM, 1214 bytes Adds the file icon.png"="9/3/2014 2:43 PM, 11202 bytes Adds the file icon64.png"="9/3/2014 2:43 PM, 11202 bytes Adds the file install.rdf"="9/12/2014 12:37 PM, 1063 bytes Adds the file locales.json"="9/12/2014 12:37 PM, 16 bytes Adds the folder C:\Program Files\Mozilla Firefox\browser\extensions\9654538aa6124877979b03b4d4117045@jetpack\defaults Adds the folder C:\Program Files\Mozilla Firefox\browser\extensions\9654538aa6124877979b03b4d4117045@jetpack\resources\addon-sdk Adds the folder C:\Program Files\Mozilla Firefox\browser\extensions\9654538aa6124877979b03b4d4117045@jetpack\resources\f\data Adds the folder C:\Program Files\Mozilla Firefox\browser\extensions\9654538aa6124877979b03b4d4117045@jetpack\resources\f\lib Adds the file main.js"="9/12/2014 12:37 PM, 6327 bytes Adds the folder C:\Program Files\ver5CheckMeUp Adds the file 184.crx"="12/7/2014 4:10 PM, 17910 bytes, A Adds the file 184.dat"="12/7/2014 4:10 PM, 5085 bytes, A Adds the file 184.dll"="12/7/2014 4:10 PM, 263168 bytes, A Adds the file 184.xpi"="12/7/2014 4:10 PM, 8683 bytes, A Adds the file CheckMeUp.exe"="12/7/2014 4:10 PM, 745984 bytes, A Adds the file G3RH184.bin"="12/7/2014 4:10 PM, 416 bytes, A Adds the file G3RH184.dll"="12/7/2014 4:10 PM, 418304 bytes, A Adds the file G3RH184.exe"="12/7/2014 4:10 PM, 161792 bytes, A Adds the file l7CheckMeUpB49.dll"="12/7/2014 4:10 PM, 102400 bytes, A Adds the file l7CheckMeUpB49.exe"="12/7/2014 4:10 PM, 732160 bytes, A Adds the file R9N.exe"="12/7/2014 4:10 PM, 291328 bytes, A Adds the file sqlite3.dll"="6/25/2014 5:41 PM, 612664 bytes, A Adds the file Uninstall.exe"="12/7/2014 4:10 PM, 272374 bytes, A Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jpopcccdbgehehgfhommcdnghdnjnoeb\1.184.0.0_0 Adds the file b.html"="12/7/2014 4:10 PM, 91 bytes, A Adds the file b.js"="12/7/2014 4:10 PM, 2634 bytes, A Adds the file c.js"="12/7/2014 4:10 PM, 5954 bytes, A Adds the file icon128.png"="12/7/2014 4:10 PM, 4813 bytes, A Adds the file icon16.png"="12/7/2014 4:10 PM, 1420 bytes, A Adds the file icon48.png"="12/7/2014 4:10 PM, 1902 bytes, A Adds the file manifest.json"="12/7/2014 4:10 PM, 620 bytes, A In the existing folder C:\Windows\System32\Tasks Adds the file CheckMeUp Update"="12/7/2014 4:10 PM, 3058 bytes, A In the existing folder C:\Windows\Tasks Adds the file CheckMeUp Update.job"="12/7/2014 4:10 PM, 396 bytes, A Registry details ------------------------------------------ [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{59D7C4A9-7BD6-C86D-030B-B240716368AF}] "(Default)"="REG_SZ", "CheckMeUp" [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{59D7C4A9-7BD6-C86D-030B-B240716368AF}\Implemented Categories\{59fb2056-d625-48d0-a944-1a85b5ab2640}] "(Default)"="REG_SZ", "" [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{59D7C4A9-7BD6-C86D-030B-B240716368AF}\InprocServer32] "(Default)"="REG_SZ", "C:\Program Files\ver5CheckMeUp\184.dll" "ThreadingModel"="REG_SZ", "Apartment" [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{59D7C4A9-7BD6-C86D-030B-B240716368AF}\Programmable] "(Default)"="REG_SZ", "" [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{59D7C4A9-7BD6-C86D-030B-B240716368AF}\TypeLib] "(Default)"="REG_SZ", "{0D97D7F1-49A3-F75A-A538-2A78B995DFFF}" [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{59D7C4A9-7BD6-C86D-030B-B240716368AF}\Version] "(Default)"="REG_SZ", "1.0" [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{25552AA4-38E0-A2BE-A961-1E3F24F6376A}\TypeLib] "(Default)"="REG_SZ", "{0D97D7F1-49A3-F75A-A538-2A78B995DFFF}" [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{25552AA4-38E0-A2BE-A961-1E3F24F6376A}\TypeLib\Version] "(Default)"="REG_SZ", "1.0" [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{0D97D7F1-49A3-F75A-A538-2A78B995DFFF}\1.0] "(Default)"="REG_SZ", "IEInjectLib" [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{0D97D7F1-49A3-F75A-A538-2A78B995DFFF}\1.0\0\HELPDIR] "(Default)"="REG_SZ", "C:\Program Files\ver5CheckMeUp\" [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{0D97D7F1-49A3-F75A-A538-2A78B995DFFF}\1.0\0\win32] "(Default)"="REG_SZ", "C:\Program Files\ver5CheckMeUp\184.dll" [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{0D97D7F1-49A3-F75A-A538-2A78B995DFFF}\1.0\FLAGS] "(Default)"="REG_SZ", "0" [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{59D7C4A9-7BD6-C86D-030B-B240716368AF}] "(Default)"="REG_SZ", "CheckMeUp" "NoExplorer"="REG_DWORD", 1 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\DC9DBBC5-3C3F-14E9-1397-DBC8DAF43921] "DisplayName"="REG_SZ", "CheckMeUp" "Publisher"="REG_SZ", "CheckMeUp-software" "UninstallString"="REG_SZ", "C:\Program Files\ver5CheckMeUp\Uninstall.exe" "Version"="REG_SZ", "184" [HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Google\Chrome\ExtensionInstallWhitelist] "1"="REG_SZ", "jpopcccdbgehehgfhommcdnghdnjnoeb" [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\CheckMeUp] "Description"="REG_SZ", "CheckMeUp" "DisplayName"="REG_SZ", "CheckMeUp" "ErrorControl"="REG_DWORD", 0 "ImagePath"="REG_EXPAND_SZ, "C:\Program Files\ver5CheckMeUp\G3RH184.exe" "ObjectName"="REG_SZ", "LocalSystem" "Start"="REG_DWORD", 2 "Type"="REG_DWORD", 16 [HKEY_CURRENT_USER\Software\AppDataLow\Software\CheckMeUp] "arm"="REG_SZ", "Ads" "armt"="REG_SZ", "1417965038" "eb"="REG_SZ", "" "ia"="REG_SZ", "IE,FF,Chrome" "id"="REG_SZ", "5530B147865AFF77" "it"="REG_SZ", "1417965038" "m1"="REG_BINARY, .... "m2"="REG_BINARY, .... "ut"="REG_SZ", "0" "version"="REG_SZ", "184" [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Ext\Settings\{59D7C4A9-7BD6-C86D-030B-B240716368AF}] "Flags"="REG_DWORD", 1024 [HKEY_CURRENT_USER\Software\Mozilla\Firefox\Extensions] "{51F29F4F-4B71-7BAA-E305-26116598A519}"="REG_SZ", "C:\Program Files\ver5CheckMeUp\184.xpi"Malwarebytes Anti-Malware log:
Malwarebytes Anti-Malware www.malwarebytes.org Scan Date: 12/7/2014 Scan Time: 4:16:42 PM Logfile: mbamCheckMeUp.txt Administrator: Yes Version: 2.00.4.1028 Malware Database: v2014.12.07.07 Rootkit Database: v2014.12.03.01 License: Free Malware Protection: Disabled Malicious Website Protection: Disabled Self-protection: Disabled OS: Windows 7 Service Pack 1 CPU: x86 File System: NTFS User: Malwarebytes Scan Type: Threat Scan Result: Completed Objects Scanned: 280291 Time Elapsed: 3 min, 52 sec Memory: Enabled Startup: Enabled Filesystem: Enabled Archives: Enabled Rootkits: Disabled Heuristics: Enabled PUP: Enabled PUM: Enabled Processes: 3 PUP.Optional.CheckMeUp.A, C:\Program Files\ver5CheckMeUp\G3RH184.exe, 3320, Delete-on-Reboot, [11f21947671595a162693018ba49649c] PUP.Optional.CheckMeUp.A, C:\Program Files\ver5CheckMeUp\CheckMeUp.exe, 2732, Delete-on-Reboot, [38cbc799c4b847efd447b195ee1547b9] PUP.Optional.CheckMeUp.A, C:\Program Files\ver5CheckMeUp\l7CheckMeUpB49.exe, 2908, Delete-on-Reboot, [38cbc799c4b847efd447b195ee1547b9] Modules: 1 PUP.Optional.CheckMeUp.A, C:\Program Files\ver5CheckMeUp\G3RH184.dll, Delete-on-Reboot, [38cbc799c4b847efd447b195ee1547b9], Registry Keys: 9 PUP.Optional.CheckMeUp.A, HKLM\SYSTEM\CURRENTCONTROLSET\SERVICES\CheckMeUp, Quarantined, [11f21947671595a162693018ba49649c], PUP.Optional.CheckMeUp.A, HKLM\SOFTWARE\CLASSES\CLSID\{59D7C4A9-7BD6-C86D-030B-B240716368AF}, Quarantined, [38cbc799c4b847efd447b195ee1547b9], PUP.Optional.CheckMeUp.A, HKLM\SOFTWARE\CLASSES\TYPELIB\{0D97D7F1-49A3-F75A-A538-2A78B995DFFF}, Quarantined, [38cbc799c4b847efd447b195ee1547b9], PUP.Optional.CheckMeUp.A, HKLM\SOFTWARE\CLASSES\INTERFACE\{25552AA4-38E0-A2BE-A961-1E3F24F6376A}, Quarantined, [38cbc799c4b847efd447b195ee1547b9], PUP.Optional.CheckMeUp.A, HKLM\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\BROWSER HELPER OBJECTS\{59D7C4A9-7BD6-C86D-030B-B240716368AF}, Quarantined, [38cbc799c4b847efd447b195ee1547b9], PUP.Optional.CheckMeUp.A, HKCU\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXT\SETTINGS\{59D7C4A9-7BD6-C86D-030B-B240716368AF}, Quarantined, [38cbc799c4b847efd447b195ee1547b9], PUP.Optional.CheckMeUp.A, HKCU\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXT\STATS\{59D7C4A9-7BD6-C86D-030B-B240716368AF}, Quarantined, [38cbc799c4b847efd447b195ee1547b9], PUP.Optional.CheckMeUp.A, HKLM\SOFTWARE\CLASSES\CLSID\{59D7C4A9-7BD6-C86D-030B-B240716368AF}\INPROCSERVER32, Quarantined, [38cbc799c4b847efd447b195ee1547b9], PUP.Optional.CheckMeUp.A, HKLM\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\UNINSTALL\DC9DBBC5-3C3F-14E9-1397-DBC8DAF43921, Quarantined, [38cbc799c4b847efd447b195ee1547b9], Registry Values: 1 PUP.Optional.CheckMeUp.A, HKCU\SOFTWARE\MOZILLA\FIREFOX\EXTENSIONS|{51F29F4F-4B71-7BAA-E305-26116598A519}, C:\Program Files\ver5CheckMeUp\184.xpi, Quarantined, [d23166fadd9f3600ed9692b517ec33cd] Registry Data: 0 (No malicious items detected) Folders: 3 PUP.Optional.CheckMeUp.A, C:\Program Files\ver5CheckMeUp, Delete-on-Reboot, [38cbc799c4b847efd447b195ee1547b9], PUP.Optional.CheckMeUp.A, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jpopcccdbgehehgfhommcdnghdnjnoeb, Quarantined, [8a79421e542804329ea381c64fb4a759], PUP.Optional.CheckMeUp.A, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jpopcccdbgehehgfhommcdnghdnjnoeb\1.184.0.0_0, Quarantined, [8a79421e542804329ea381c64fb4a759], Files: 22 PUP.Optional.CheckMeUp.A, C:\Windows\Tasks\CheckMeUp Update.job, Quarantined, [d92ad090aece52e4b01cf35553b0669a], PUP.Optional.CheckMeUp.A, C:\Windows\System32\Tasks\CheckMeUp Update, Quarantined, [b152e08095e790a6dbf25cec7a8948b8], PUP.Optional.CheckMeUp.A, C:\Program Files\ver5CheckMeUp\G3RH184.exe, Delete-on-Reboot, [11f21947671595a162693018ba49649c], PUP.Optional.CheckMeUp.A, C:\Program Files\ver5CheckMeUp\184.crx, Quarantined, [38cbc799c4b847efd447b195ee1547b9], PUP.Optional.CheckMeUp.A, C:\Program Files\ver5CheckMeUp\184.dat, Quarantined, [38cbc799c4b847efd447b195ee1547b9], PUP.Optional.CheckMeUp.A, C:\Program Files\ver5CheckMeUp\184.dll, Quarantined, [38cbc799c4b847efd447b195ee1547b9], PUP.Optional.CheckMeUp.A, C:\Program Files\ver5CheckMeUp\184.xpi, Quarantined, [38cbc799c4b847efd447b195ee1547b9], PUP.Optional.CheckMeUp.A, C:\Program Files\ver5CheckMeUp\CheckMeUp.exe, Delete-on-Reboot, [38cbc799c4b847efd447b195ee1547b9], PUP.Optional.CheckMeUp.A, C:\Program Files\ver5CheckMeUp\G3RH184.bin, Quarantined, [38cbc799c4b847efd447b195ee1547b9], PUP.Optional.CheckMeUp.A, C:\Program Files\ver5CheckMeUp\G3RH184.dll, Delete-on-Reboot, [38cbc799c4b847efd447b195ee1547b9], PUP.Optional.CheckMeUp.A, C:\Program Files\ver5CheckMeUp\l7CheckMeUpB49.dll, Quarantined, [38cbc799c4b847efd447b195ee1547b9], PUP.Optional.CheckMeUp.A, C:\Program Files\ver5CheckMeUp\l7CheckMeUpB49.exe, Delete-on-Reboot, [38cbc799c4b847efd447b195ee1547b9], PUP.Optional.CheckMeUp.A, C:\Program Files\ver5CheckMeUp\R9N.exe, Quarantined, [38cbc799c4b847efd447b195ee1547b9], PUP.Optional.CheckMeUp.A, C:\Program Files\ver5CheckMeUp\sqlite3.dll, Quarantined, [38cbc799c4b847efd447b195ee1547b9], PUP.Optional.CheckMeUp.A, C:\Program Files\ver5CheckMeUp\Uninstall.exe, Quarantined, [38cbc799c4b847efd447b195ee1547b9], PUP.Optional.CheckMeUp.A, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jpopcccdbgehehgfhommcdnghdnjnoeb\1.184.0.0_0\b.html, Quarantined, [8a79421e542804329ea381c64fb4a759], PUP.Optional.CheckMeUp.A, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jpopcccdbgehehgfhommcdnghdnjnoeb\1.184.0.0_0\b.js, Quarantined, [8a79421e542804329ea381c64fb4a759], PUP.Optional.CheckMeUp.A, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jpopcccdbgehehgfhommcdnghdnjnoeb\1.184.0.0_0\c.js, Quarantined, [8a79421e542804329ea381c64fb4a759], PUP.Optional.CheckMeUp.A, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jpopcccdbgehehgfhommcdnghdnjnoeb\1.184.0.0_0\icon128.png, Quarantined, [8a79421e542804329ea381c64fb4a759], PUP.Optional.CheckMeUp.A, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jpopcccdbgehehgfhommcdnghdnjnoeb\1.184.0.0_0\icon16.png, Quarantined, [8a79421e542804329ea381c64fb4a759], PUP.Optional.CheckMeUp.A, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jpopcccdbgehehgfhommcdnghdnjnoeb\1.184.0.0_0\icon48.png, Quarantined, [8a79421e542804329ea381c64fb4a759], PUP.Optional.CheckMeUp.A, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jpopcccdbgehehgfhommcdnghdnjnoeb\1.184.0.0_0\manifest.json, Quarantined, [8a79421e542804329ea381c64fb4a759], Physical Sectors: 0 (No malicious items detected) (end)As mentioned before the full version of Malwarebytes Anti-Malware could have protected your computer against this threat.
We use different ways of protecting your computer(s):
- Dynamically Blocks Malware Sites & Servers
- Malware Execution Prevention