What is Tres?
The Malwarebytes research team has determined that Tres is a search 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.
How do I know if my computer is affected by Tres?
You may see this entry in your list of installed Chrome extensions:
and these warnings during install:
Despite this warning the install was successful
How did Tres get on my computer?
Browser hijackers use different methods for distributing themselves. This particular one was downloaded from the webstore:
after a redirect from their website:
How do I remove Tres?
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 Tres completely.
We hope our application and this guide have helped you eradicate this hijacker.
As you can see below the full version of Malwarebytes would have protected you against the Tres hijacker. It would have blocked their website, giving you a chance to stop it before it became too late.
Technical details for experts
Possible signs in FRST logs:
CHR Extension: (Tres) - C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\bjoigjeckcllkadljiceicgimdjnmhmh [2019-07-31]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\bjoigjeckcllkadljiceicgimdjnmhmh\5.7_0 Adds the file background.js"="7/17/2019 4:19 AM, 7742 bytes, A Adds the file manifest.json"="7/31/2019 2:01 PM, 7311 bytes, A Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\bjoigjeckcllkadljiceicgimdjnmhmh\5.7_0\_metadata Adds the file computed_hashes.json"="7/31/2019 2:01 PM, 404 bytes, A Adds the file verified_contents.json"="7/29/2019 11:18 PM, 1645 bytes, A Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\bjoigjeckcllkadljiceicgimdjnmhmh\5.7_0\icons Adds the file icon128.png"="7/31/2019 2:01 PM, 2188 bytes, A Adds the file icon48.png"="7/31/2019 2:01 PM, 253 bytes, A Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Sync Extension Settings\bjoigjeckcllkadljiceicgimdjnmhmh Adds the file 000003.log"="7/31/2019 2:03 PM, 128 bytes, A Adds the file CURRENT"="7/31/2019 2:01 PM, 16 bytes, A Adds the file LOCK"="7/31/2019 2:01 PM, 0 bytes, A Adds the file LOG"="7/31/2019 2:01 PM, 184 bytes, A Adds the file MANIFEST-000001"="7/31/2019 2:01 PM, 41 bytes, A Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Web Applications\_crx_bjoigjeckcllkadljiceicgimdjnmhmh Adds the file Tres.ico"="7/31/2019 2:01 PM, 162813 bytes, A Adds the file Tres.ico.md5"="7/31/2019 2:01 PM, 16 bytes, A Registry details [View: All details] (Selection) ------------------------------------------------ [HKEY_CURRENT_USER\Software\Google\Chrome\PreferenceMACs\Default\extensions.settings] "bjoigjeckcllkadljiceicgimdjnmhmh"="REG_SZ", "CA3655C0633625007946C318338C9195471815F032F970E2CDE538A0F1443647"Malwarebytes log:
Malwarebytes www.malwarebytes.com -Log Details- Scan Date: 7/31/19 Scan Time: 2:11 PM Log File: 634c5ffc-b38c-11e9-8b91-00ffdcc6fdfc.json -Software Information- Version: 3.8.3.2965 Components Version: 1.0.613 Update Package Version: 1.0.11789 License: Premium -System Information- OS: Windows 7 Service Pack 1 CPU: x64 File System: NTFS User: {computername}\{username} -Scan Summary- Scan Type: Threat Scan Scan Initiated By: Manual Result: Completed Objects Scanned: 236483 Threats Detected: 19 Threats Quarantined: 19 Time Elapsed: 8 min, 50 sec -Scan Options- Memory: Enabled Startup: Enabled Filesystem: Enabled Archives: Enabled Rootkits: Enabled Heuristics: Enabled PUP: Detect PUM: Detect -Scan Details- Process: 0 (No malicious items detected) Module: 0 (No malicious items detected) Registry Key: 0 (No malicious items detected) Registry Value: 1 PUP.Optional.QXSearch, HKCU\SOFTWARE\GOOGLE\CHROME\PREFERENCEMACS\Default\extensions.settings|bjoigjeckcllkadljiceicgimdjnmhmh, Quarantined, [351], [676735],1.0.11789 Registry Data: 0 (No malicious items detected) Data Stream: 0 (No malicious items detected) Folder: 5 PUP.Optional.QXSearch, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\Sync Extension Settings\bjoigjeckcllkadljiceicgimdjnmhmh, Quarantined, [351], [676735],1.0.11789 PUP.Optional.QXSearch, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\bjoigjeckcllkadljiceicgimdjnmhmh\5.7_0\_metadata, Quarantined, [351], [676735],1.0.11789 PUP.Optional.QXSearch, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\bjoigjeckcllkadljiceicgimdjnmhmh\5.7_0\icons, Quarantined, [351], [676735],1.0.11789 PUP.Optional.QXSearch, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\bjoigjeckcllkadljiceicgimdjnmhmh\5.7_0, Quarantined, [351], [676735],1.0.11789 PUP.Optional.QXSearch, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\DEFAULT\EXTENSIONS\BJOIGJECKCLLKADLJICEICGIMDJNMHMH, Quarantined, [351], [676735],1.0.11789 File: 13 PUP.Optional.QXSearch, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Sync Extension Settings\bjoigjeckcllkadljiceicgimdjnmhmh\000003.log, Quarantined, [351], [676735],1.0.11789 PUP.Optional.QXSearch, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Sync Extension Settings\bjoigjeckcllkadljiceicgimdjnmhmh\CURRENT, Quarantined, [351], [676735],1.0.11789 PUP.Optional.QXSearch, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Sync Extension Settings\bjoigjeckcllkadljiceicgimdjnmhmh\LOCK, Quarantined, [351], [676735],1.0.11789 PUP.Optional.QXSearch, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Sync Extension Settings\bjoigjeckcllkadljiceicgimdjnmhmh\LOG, Quarantined, [351], [676735],1.0.11789 PUP.Optional.QXSearch, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Sync Extension Settings\bjoigjeckcllkadljiceicgimdjnmhmh\MANIFEST-000001, Quarantined, [351], [676735],1.0.11789 PUP.Optional.QXSearch, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\Secure Preferences, Replaced, [351], [676735],1.0.11789 PUP.Optional.QXSearch, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\Preferences, Replaced, [351], [676735],1.0.11789 PUP.Optional.QXSearch, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\DEFAULT\EXTENSIONS\BJOIGJECKCLLKADLJICEICGIMDJNMHMH\5.7_0\MANIFEST.JSON, Quarantined, [351], [676735],1.0.11789 PUP.Optional.QXSearch, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\bjoigjeckcllkadljiceicgimdjnmhmh\5.7_0\icons\icon128.png, Quarantined, [351], [676735],1.0.11789 PUP.Optional.QXSearch, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\bjoigjeckcllkadljiceicgimdjnmhmh\5.7_0\icons\icon48.png, Quarantined, [351], [676735],1.0.11789 PUP.Optional.QXSearch, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\bjoigjeckcllkadljiceicgimdjnmhmh\5.7_0\_metadata\computed_hashes.json, Quarantined, [351], [676735],1.0.11789 PUP.Optional.QXSearch, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\bjoigjeckcllkadljiceicgimdjnmhmh\5.7_0\_metadata\verified_contents.json, Quarantined, [351], [676735],1.0.11789 PUP.Optional.QXSearch, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\bjoigjeckcllkadljiceicgimdjnmhmh\5.7_0\background.js, Quarantined, [351], [676735],1.0.11789 Physical Sector: 0 (No malicious items detected) WMI: 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