What is Share This?
The Malwarebytes research team has determined that Share This is adware. These adware applications display advertisements not originating from the sites you are browsing.
How do I know if my computer is affected by Share This?
You may see this entry in your list of installed programs:
and these warnings during install:
How did Share This get on my computer?
Adware applications use different methods for distributing themselves. This particular one was bundled with other software.
How do I remove Share This?
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 Share This 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 Share This adware. 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
You will see these signs in a HijackThis log:
O23 - Service: ShareThis - Data Protection Solutions - C:\ProgramData\ShareThis\ShareThisService.exe
Alterations made by the installer:
File system details --------------------------------------------- Adds the folder C:\ProgramData\ShareThis Adds the file info.dat"="10/15/2014 4:25 PM, 64 bytes, A Adds the file ShareThis.dll"="10/15/2014 4:26 PM, 1186160 bytes, A Adds the file ShareThis.exe"="10/15/2014 4:26 PM, 50032 bytes, A Adds the file ShareThis.exe.config"="10/15/2014 4:26 PM, 190 bytes, A Adds the file ShareThis.ico"="10/15/2014 4:26 PM, 109956 bytes, A Adds the file ShareThisService.exe"="10/15/2014 4:25 PM, 2319728 bytes, A Adds the file ShareThisService.exe.config"="10/15/2014 4:25 PM, 189 bytes, A Adds the file uninstall.exe"="10/15/2014 4:26 PM, 655216 bytes, A Adds the file uninstall.exe.config"="10/15/2014 4:26 PM, 168 bytes, A Adds the folder C:\Users\{username}\AppData\Local\ShareThis Adds the file data2.dat"="10/15/2014 4:26 PM, 3072 bytes, A Registry details ------------------------------------------ [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{051E9166-B275-4683-907B-372FAE22BC7C}] "id"="REG_SZ", "b09dff4fb47c43d298b4c2619aa8f702" "p"="REG_SZ", "360" [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{9C4EFBD5-1ADF-41E6-BE26-AF44326E30E4}] "(Default)"="REG_DWORD", 1 "v"="REG_DWORD", 1 "vs"="REG_SZ", "1" [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{A2970C7C-8392-4E6F-8B51-B763CF38E13C}] [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{b38eda15-ae89-946f-d078-659511cb5b8b}] "ik"="REG_SZ", "{266bd9d1-3788-4476-121b-bd4663499fd0}" [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{dfa9bc19-1043-9360-e0a6-eaa698b1126a}] "id"="REG_SZ", "b09dff4fb47c43d298b4c2619aa8f702" "p"="REG_SZ", "360" [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\ShareThisService_RASAPI32] "ConsoleTracingMask"="REG_DWORD", -65536 "EnableConsoleTracing"="REG_DWORD", 0 "EnableFileTracing"="REG_DWORD", 0 "FileDirectory"="REG_EXPAND_SZ, "%windir%\tracing" "FileTracingMask"="REG_DWORD", -65536 "MaxFileSize"="REG_DWORD", 1048576 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\ShareThisService_RASMANCS] "ConsoleTracingMask"="REG_DWORD", -65536 "EnableConsoleTracing"="REG_DWORD", 0 "EnableFileTracing"="REG_DWORD", 0 "FileDirectory"="REG_EXPAND_SZ, "%windir%\tracing" "FileTracingMask"="REG_DWORD", -65536 "MaxFileSize"="REG_DWORD", 1048576 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\ShareThis] "DisplayIcon"="REG_SZ", "C:\ProgramData\ShareThis\ShareThis.ico" "DisplayName"="REG_SZ", "ShareThis" "DisplayVersion"="REG_SZ", "3.0.11" "EstimatedSize"="REG_DWORD", 5000 "HelpLink"="REG_SZ", "http://www.getsharethis.com/about.html" "InstallDate"="REG_SZ", "10/15/2014" "Publisher"="REG_SZ", "Data Protection Solutions" "UninstallString"="REG_SZ", ""C:\ProgramData\ShareThis\uninstall.exe"" [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\ShareThis] "DependOnService"="REG_MULTI_SZ, "Winmgmt CryptSvc " "DisplayName"="REG_SZ", "ShareThis" "ErrorControl"="REG_DWORD", 1 "FailureActions"="REG_BINARY, <..................... "ImagePath"="REG_EXPAND_SZ, ""C:\ProgramData\ShareThis\ShareThisService.exe"" "ObjectName"="REG_SZ", "LocalSystem" "Start"="REG_DWORD", 2 "Type"="REG_DWORD", 16
Malwarebytes Anti-Malware log:
Malwarebytes Anti-Malware www.malwarebytes.org Scan Date: 10/15/2014 Scan Time: 4:16:57 PM Logfile: mbamShareThis.txt Administrator: Yes Version: 2.00.3.1024 Malware Database: v2014.10.15.03 Rootkit Database: v2014.10.15.01 License: Premium Malware Protection: Enabled Malicious Website Protection: Enabled Self-protection: Disabled OS: Windows 7 Service Pack 1 CPU: x86 File System: NTFS User: Malwarebytes Scan Type: Threat Scan Result: Completed Objects Scanned: 269816 Time Elapsed: 5 min, 51 sec Memory: Enabled Startup: Enabled Filesystem: Enabled Archives: Enabled Rootkits: Disabled Heuristics: Enabled PUP: Enabled PUM: Enabled Processes: 1 PUP.Optional.ShareThis.A, C:\ProgramData\ShareThis\ShareThisService.exe, 1212, Delete-on-Reboot, [639c36de5e1e87af1df9dcf48a77d22e] Modules: 0 (No malicious items detected) Registry Keys: 3 PUP.Optional.ShareThis.A, HKLM\SYSTEM\CURRENTCONTROLSET\SERVICES\ShareThis, Quarantined, [639c36de5e1e87af1df9dcf48a77d22e], PUP.Optional.WebSteroids.A, HKLM\SOFTWARE\CLASSES\CLSID\{051E9166-B275-4683-907B-372FAE22BC7C}, Quarantined, [06f9f222f18be55161f57d258a7833cd], PUP.Optional.ShareThis.A, HKLM\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\UNINSTALL\ShareThis, Quarantined, [14eb24f0d1abd75f1cfa2da38879e11f], Registry Values: 0 (No malicious items detected) Registry Data: 0 (No malicious items detected) Folders: 4 PUP.Optional.ShareThis.A, C:\Users\{username}\AppData\Local\ShareThis, Quarantined, [6c9300141666e5515ff8f89312f258a8], PUP.Optional.ShareThis.A, C:\ProgramData\ShareThis, Delete-on-Reboot, [6a9516feb6c60e28382b4249ad576997], PUP.Optional.ShareThis.A, C:\ProgramData\ShareThis\up, Quarantined, [6a9516feb6c60e28382b4249ad576997], PUP.Optional.ShareThis.A, C:\ProgramData\ShareThis\up\3.0.15, Quarantined, [6a9516feb6c60e28382b4249ad576997], Files: 12 PUP.Optional.ShareThis.A, C:\ProgramData\ShareThis\ShareThisService.exe, Delete-on-Reboot, [639c36de5e1e87af1df9dcf48a77d22e], PUP.Optional.ShareThis.A, C:\ProgramData\ShareThis\ShareThis.dll, Quarantined, [aa5555bfafcd72c4292af123af568d73], PUP.Optional.ShareThis.A, C:\ProgramData\ShareThis\ShareThis.exe, Quarantined, [12ed140083f9d85e37df616fb44da35d], PUP.Optional.ShareThis.A, C:\ProgramData\ShareThis\uninstall.exe, Quarantined, [14eb24f0d1abd75f1cfa2da38879e11f], PUP.Optional.ShareThis.A, C:\Users\{username}\Desktop\ShareThis.exe, Quarantined, [24db9d7735477abc987eb61ada2758a8], PUP.Optional.ShareThis.A, C:\Users\{username}\AppData\Local\ShareThis\data2.dat, Quarantined, [6c9300141666e5515ff8f89312f258a8], PUP.Optional.ShareThis.A, C:\ProgramData\ShareThis\info.dat, Delete-on-Reboot, [6a9516feb6c60e28382b4249ad576997], PUP.Optional.ShareThis.A, C:\ProgramData\ShareThis\ShareThis.exe.config, Quarantined, [6a9516feb6c60e28382b4249ad576997], PUP.Optional.ShareThis.A, C:\ProgramData\ShareThis\ShareThis.ico, Quarantined, [6a9516feb6c60e28382b4249ad576997], PUP.Optional.ShareThis.A, C:\ProgramData\ShareThis\ShareThisService.exe.config, Quarantined, [6a9516feb6c60e28382b4249ad576997], PUP.Optional.ShareThis.A, C:\ProgramData\ShareThis\uninstall.exe.config, Quarantined, [6a9516feb6c60e28382b4249ad576997], PUP.Optional.ShareThis.A, C:\ProgramData\ShareThis\up\3.0.15\update.exe.config, Quarantined, [6a9516feb6c60e28382b4249ad576997], 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