What is MeSafe?
The Malwarebytes research team has determined that MeSafe 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 MeSafe?
You may see this entry in your list of Chrome extensions:

and this icon in the Chrome taskbar:

How did MeSafe get on my computer?
Adware applications use different methods for distributing themselves. This particular one was bundled with other software.
How do I remove MeSafe?
Our program Malwarebytes can detect and remove this potentially unwanted program.
- Please download Malwarebytes to your desktop.
- Double-click mb3-setup-consumer-{version}.exe and follow the prompts to install the program.
- Then click Finish.
- Once the program has fully updated, select Scan Now on the Dashboard. Or select the Threat Scan from the Scan menu.
- If another update of the definitions is available, it will be implemented before the rest of the scanning procedure.
- When the scan is complete, make sure that all Threats are selected, and click Remove Selected.
- Restart your computer when prompted to do so.
- No, Malwarebytes removes MeSafe completely.
- You may have to remove the Extension manually under Tools > Settings > Extensions. Remove the checkmark and click on the bin behind the MeSafe entry.
We hope our application and this guide have helped you eradicate this adware.
As you can see below the full version of Malwarebytes would have protected you against the MeSafe adware. It would have warned you before the adware could install itself, giving you a chance to stop it before it became too late.
Technical details for experts
Possible signs in FRST logs:
CHR Extension: (MeSafe) - C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana [2017-04-14]Alterations made by the installer:
File system details [View: All details] (Selection) --------------------------------------------------- Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0 Adds the file background.html"="4/14/2017 8:23 AM, 154 bytes, A Adds the file manifest.json"="4/14/2017 8:23 AM, 1371 bytes, A Adds the file popup.html"="4/14/2017 8:23 AM, 669 bytes, A Adds the file warn.html"="4/14/2017 8:23 AM, 1356 bytes, A Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0\_locales\de Adds the file messages.json"="4/14/2017 8:23 AM, 494 bytes, A Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0\_locales\en Adds the file messages.json"="4/14/2017 8:23 AM, 472 bytes, A Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0\_locales\ru Adds the file messages.json"="4/14/2017 8:23 AM, 581 bytes, A Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0\_metadata Adds the file computed_hashes.json"="4/14/2017 8:23 AM, 6789 bytes, A Adds the file verified_contents.json"="4/14/2017 8:23 AM, 4111 bytes, A Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0\css Adds the file bootstrap.css"="4/14/2017 8:23 AM, 191738 bytes, A Adds the file popup.css"="4/14/2017 8:23 AM, 413 bytes, A Adds the file warn.css"="4/14/2017 8:23 AM, 462 bytes, A Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0\images Adds the file icon128.png"="4/14/2017 8:23 AM, 7687 bytes, A Adds the file icon16.png"="4/14/2017 8:23 AM, 803 bytes, A Adds the file icon19.png"="4/14/2017 8:23 AM, 1042 bytes, A Adds the file icon19_red.png"="4/14/2017 8:23 AM, 1426 bytes, A Adds the file icon38.png"="4/14/2017 8:23 AM, 2457 bytes, A Adds the file icon38_red.png"="4/14/2017 8:23 AM, 2992 bytes, A Adds the file icon48.png"="4/14/2017 8:23 AM, 3151 bytes, A Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0\js Adds the file background.js"="4/14/2017 8:23 AM, 4097 bytes, A Adds the file content.js"="4/14/2017 8:23 AM, 1308 bytes, A Adds the file jquery.js"="4/14/2017 8:23 AM, 277125 bytes, A Adds the file popup.js"="4/14/2017 8:23 AM, 2752 bytes, A Adds the file warn.js"="4/14/2017 8:23 AM, 2701 bytes, A Registry details [View: All details] (Selection) ------------------------------------------------ [HKEY_CURRENT_USER\Software\mesafe] "status"="REG_SZ", "1"Malwarebytes log:
Malwarebytes www.malwarebytes.com -Log Details- Scan Date: 4/14/17 Scan Time: 8:39 AM Logfile: mbamMeSafe.txt Administrator: Yes -Software Information- Version: 3.0.6.1469 Components Version: 1.0.96 Update Package Version: 1.0.1725 License: Premium -System Information- OS: Windows 7 Service Pack 1 CPU: x64 File System: NTFS User: {computername}\{username} -Scan Summary- Scan Type: Threat Scan Result: Completed Objects Scanned: 326803 Time Elapsed: 1 min, 18 sec -Scan Options- Memory: Enabled Startup: Enabled Filesystem: Enabled Archives: Enabled Rootkits: Disabled Heuristics: Enabled PUP: Enabled PUM: Enabled -Scan Details- Process: 0 (No malicious items detected) Module: 0 (No malicious items detected) Registry Key: 1 PUP.Optional.MeSafe, HKCU\SOFTWARE\MESAFE, Delete-on-Reboot, [9021], [389387],1.0.1725 Registry Value: 1 PUP.Optional.MeSafe, HKCU\SOFTWARE\MESAFE|STATUS, Delete-on-Reboot, [9021], [389387],1.0.1725 Registry Data: 0 (No malicious items detected) Data Stream: 0 (No malicious items detected) Folder: 10 PUP.Optional.MeSafe, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0\_locales\de, Delete-on-Reboot, [9021], [389385],1.0.1725 PUP.Optional.MeSafe, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0\_locales\en, Delete-on-Reboot, [9021], [389385],1.0.1725 PUP.Optional.MeSafe, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0\_locales\ru, Delete-on-Reboot, [9021], [389385],1.0.1725 PUP.Optional.MeSafe, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0\_metadata, Delete-on-Reboot, [9021], [389385],1.0.1725 PUP.Optional.MeSafe, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0\_locales, Delete-on-Reboot, [9021], [389385],1.0.1725 PUP.Optional.MeSafe, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0\images, Delete-on-Reboot, [9021], [389385],1.0.1725 PUP.Optional.MeSafe, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0\css, Delete-on-Reboot, [9021], [389385],1.0.1725 PUP.Optional.MeSafe, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0\js, Delete-on-Reboot, [9021], [389385],1.0.1725 PUP.Optional.MeSafe, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0, Delete-on-Reboot, [9021], [389385],1.0.1725 PUP.Optional.MeSafe, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\DEFAULT\EXTENSIONS\NKKNFLEDGPMLNAPBBFDAHIIGCANJGANA, Delete-on-Reboot, [9021], [389385],1.0.1725 File: 25 PUP.Optional.MeSafe, C:\USERS\{username}\DESKTOP\MESAFE.EXE, Delete-on-Reboot, [9021], [389383],1.0.1725 PUP.Optional.MeSafe, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\DEFAULT\EXTENSIONS\NKKNFLEDGPMLNAPBBFDAHIIGCANJGANA\0.1.3_0\MANIFEST.JSON, Delete-on-Reboot, [9021], [389385],1.0.1725 PUP.Optional.MeSafe, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0\css\bootstrap.css, Delete-on-Reboot, [9021], [389385],1.0.1725 PUP.Optional.MeSafe, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0\css\popup.css, Delete-on-Reboot, [9021], [389385],1.0.1725 PUP.Optional.MeSafe, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0\css\warn.css, Delete-on-Reboot, [9021], [389385],1.0.1725 PUP.Optional.MeSafe, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0\images\icon128.png, Delete-on-Reboot, [9021], [389385],1.0.1725 PUP.Optional.MeSafe, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0\images\icon16.png, Delete-on-Reboot, [9021], [389385],1.0.1725 PUP.Optional.MeSafe, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0\images\icon19.png, Delete-on-Reboot, [9021], [389385],1.0.1725 PUP.Optional.MeSafe, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0\images\icon19_red.png, Delete-on-Reboot, [9021], [389385],1.0.1725 PUP.Optional.MeSafe, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0\images\icon38.png, Delete-on-Reboot, [9021], [389385],1.0.1725 PUP.Optional.MeSafe, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0\images\icon38_red.png, Delete-on-Reboot, [9021], [389385],1.0.1725 PUP.Optional.MeSafe, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0\images\icon48.png, Delete-on-Reboot, [9021], [389385],1.0.1725 PUP.Optional.MeSafe, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0\js\background.js, Delete-on-Reboot, [9021], [389385],1.0.1725 PUP.Optional.MeSafe, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0\js\content.js, Delete-on-Reboot, [9021], [389385],1.0.1725 PUP.Optional.MeSafe, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0\js\jquery.js, Delete-on-Reboot, [9021], [389385],1.0.1725 PUP.Optional.MeSafe, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0\js\popup.js, Delete-on-Reboot, [9021], [389385],1.0.1725 PUP.Optional.MeSafe, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0\js\warn.js, Delete-on-Reboot, [9021], [389385],1.0.1725 PUP.Optional.MeSafe, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0\_locales\de\messages.json, Delete-on-Reboot, [9021], [389385],1.0.1725 PUP.Optional.MeSafe, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0\_locales\en\messages.json, Delete-on-Reboot, [9021], [389385],1.0.1725 PUP.Optional.MeSafe, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0\_locales\ru\messages.json, Delete-on-Reboot, [9021], [389385],1.0.1725 PUP.Optional.MeSafe, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0\_metadata\computed_hashes.json, Delete-on-Reboot, [9021], [389385],1.0.1725 PUP.Optional.MeSafe, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0\_metadata\verified_contents.json, Delete-on-Reboot, [9021], [389385],1.0.1725 PUP.Optional.MeSafe, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0\background.html, Delete-on-Reboot, [9021], [389385],1.0.1725 PUP.Optional.MeSafe, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0\popup.html, Delete-on-Reboot, [9021], [389385],1.0.1725 PUP.Optional.MeSafe, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\nkknfledgpmlnapbbfdahiigcanjgana\0.1.3_0\warn.html, Delete-on-Reboot, [9021], [389385],1.0.1725 Physical Sector: 0 (No malicious items detected) (end)As mentioned before the full version of Malwarebytes 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