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What is SD Downloader?

The Malwarebytes research team has determined that SD Downloader 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 SD Downloader?

You may see this entry in your list of installed Chrome extensions:

main.png

and these warnings during install:

warning1.png

warning2.png

and you will see this icon in your Chrome menu-bar:

icon.png

How did SD Downloader get on my computer?

Browser hijackers use different methods for distributing themselves. This particular one was downloaded from the webstore:

webstore.png

through their website:

website.png

How do I remove SD Downloader?

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.

Is there anything else I need to do to get rid of SD Downloader?

  • No, Malwarebytes removes SD Downloader completely.

How would the full version of Malwarebytes help protect me?

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 SD Downloader hijacker. It would have blocked you before you could visit the website, giving you a chance to stop it before it became too late.

 

protection2.png


Technical details for experts

Possible signs in FRST logs:

 

CHR Extension: (SD Downloader) - C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jmofklodkbiklgbefobdaoipecmcjeei [2018-10-16]

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\jmofklodkbiklgbefobdaoipecmcjeei\3.3.11_0
       Adds the file bookmarks.html"="6/8/2017 9:25 PM, 451 bytes, A
       Adds the file manifest.json"="10/16/2018 4:46 PM, 1231 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jmofklodkbiklgbefobdaoipecmcjeei\3.3.11_0\_locales
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jmofklodkbiklgbefobdaoipecmcjeei\3.3.11_0\_locales\en
       Adds the file messages.json"="10/16/2018 4:46 PM, 1121 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jmofklodkbiklgbefobdaoipecmcjeei\3.3.11_0\_locales\it
       Adds the file messages.json"="10/16/2018 4:46 PM, 1175 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jmofklodkbiklgbefobdaoipecmcjeei\3.3.11_0\_metadata
       Adds the file computed_hashes.json"="10/16/2018 4:46 PM, 2794 bytes, A
       Adds the file verified_contents.json"="10/11/2018 1:49 PM, 2824 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jmofklodkbiklgbefobdaoipecmcjeei\3.3.11_0\css
       Adds the file font-awesome.min.css"="6/8/2017 12:33 PM, 17783 bytes, A
       Adds the file style.css"="6/9/2017 11:16 AM, 1670 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jmofklodkbiklgbefobdaoipecmcjeei\3.3.11_0\fonts
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jmofklodkbiklgbefobdaoipecmcjeei\3.3.11_0\images
       Adds the file logo128.png"="10/16/2018 4:46 PM, 8243 bytes, A
       Adds the file logo16.png"="10/16/2018 4:46 PM, 569 bytes, A
       Adds the file logo48.png"="10/16/2018 4:46 PM, 2483 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jmofklodkbiklgbefobdaoipecmcjeei\3.3.11_0\js
       Adds the file config.js"="6/8/2017 9:38 PM, 742 bytes, A
       Adds the file functions.js"="5/31/2017 11:18 AM, 1276 bytes, A
       Adds the file jquery-3.2.1.min.js"="5/31/2017 11:18 AM, 86659 bytes, A
       Adds the file popup.js"="6/9/2017 11:33 AM, 4276 bytes, A
       Adds the file wheesbee.js"="10/11/2018 1:49 PM, 598 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Local Extension Settings\jmofklodkbiklgbefobdaoipecmcjeei
       Adds the file 000003.log"="10/16/2018 4:47 PM, 417 bytes, A
       Adds the file CURRENT"="10/16/2018 4:46 PM, 16 bytes, A
       Adds the file LOCK"="10/16/2018 4:46 PM, 0 bytes, A
       Adds the file LOG"="10/16/2018 4:48 PM, 412 bytes, A
       Adds the file LOG.old"="10/16/2018 4:46 PM, 185 bytes, A
       Adds the file MANIFEST-000001"="10/16/2018 4:46 PM, 41 bytes, A

Registry details [View: All details] (Selection)
------------------------------------------------
    [HKEY_CURRENT_USER\Software\Google\Chrome\PreferenceMACs\Default\extensions.settings]
       "jmofklodkbiklgbefobdaoipecmcjeei"="REG_SZ", "16E8B4088E870F5A1A500C013A6208C652731CB2209C1321FF36EC10715E1BEC"

Malwarebytes log:
 

Malwarebytes
www.malwarebytes.com

-Log Details-
Scan Date: 10/18/18
Scan Time: 8:31 AM
Log File: 64a5d76d-d29f-11e8-b8c2-00ffdcc6fdfc.json

-Software Information-
Version: 3.6.1.2711
Components Version: 1.0.463
Update Package Version: 1.0.7409
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: 238220
Threats Detected: 35
Threats Quarantined: 35
Time Elapsed: 2 min, 44 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
Adware.SearchEngineHijack, HKCU\SOFTWARE\GOOGLE\CHROME\PREFERENCEMACS\Default\extensions.settings|jmofklodkbiklgbefobdaoipecmcjeei, Quarantined, [336], [583249],1.0.7409

Registry Data: 0
(No malicious items detected)

Data Stream: 0
(No malicious items detected)

Folder: 11
Adware.SearchEngineHijack, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jmofklodkbiklgbefobdaoipecmcjeei\3.3.11_0\_locales\en, Quarantined, [336], [583249],1.0.7409
Adware.SearchEngineHijack, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jmofklodkbiklgbefobdaoipecmcjeei\3.3.11_0\_locales\it, Quarantined, [336], [583249],1.0.7409
Adware.SearchEngineHijack, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jmofklodkbiklgbefobdaoipecmcjeei\3.3.11_0\_metadata, Quarantined, [336], [583249],1.0.7409
Adware.SearchEngineHijack, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jmofklodkbiklgbefobdaoipecmcjeei\3.3.11_0\_locales, Quarantined, [336], [583249],1.0.7409
Adware.SearchEngineHijack, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jmofklodkbiklgbefobdaoipecmcjeei\3.3.11_0\images, Quarantined, [336], [583249],1.0.7409
Adware.SearchEngineHijack, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jmofklodkbiklgbefobdaoipecmcjeei\3.3.11_0\fonts, Quarantined, [336], [583249],1.0.7409
Adware.SearchEngineHijack, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jmofklodkbiklgbefobdaoipecmcjeei\3.3.11_0\css, Quarantined, [336], [583249],1.0.7409
Adware.SearchEngineHijack, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jmofklodkbiklgbefobdaoipecmcjeei\3.3.11_0\js, Quarantined, [336], [583249],1.0.7409
Adware.SearchEngineHijack, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jmofklodkbiklgbefobdaoipecmcjeei\3.3.11_0, Quarantined, [336], [583249],1.0.7409
Adware.SearchEngineHijack, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\Local Extension Settings\jmofklodkbiklgbefobdaoipecmcjeei, Quarantined, [336], [583249],1.0.7409
Adware.SearchEngineHijack, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\EXTENSIONS\jmofklodkbiklgbefobdaoipecmcjeei, Quarantined, [336], [583249],1.0.7409

File: 23
Adware.SearchEngineHijack, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jmofklodkbiklgbefobdaoipecmcjeei\3.3.11_0\css\font-awesome.min.css, Quarantined, [336], [583249],1.0.7409
Adware.SearchEngineHijack, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jmofklodkbiklgbefobdaoipecmcjeei\3.3.11_0\css\style.css, Quarantined, [336], [583249],1.0.7409
Adware.SearchEngineHijack, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jmofklodkbiklgbefobdaoipecmcjeei\3.3.11_0\images\logo128.png, Quarantined, [336], [583249],1.0.7409
Adware.SearchEngineHijack, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jmofklodkbiklgbefobdaoipecmcjeei\3.3.11_0\images\logo16.png, Quarantined, [336], [583249],1.0.7409
Adware.SearchEngineHijack, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jmofklodkbiklgbefobdaoipecmcjeei\3.3.11_0\images\logo48.png, Quarantined, [336], [583249],1.0.7409
Adware.SearchEngineHijack, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jmofklodkbiklgbefobdaoipecmcjeei\3.3.11_0\js\config.js, Quarantined, [336], [583249],1.0.7409
Adware.SearchEngineHijack, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jmofklodkbiklgbefobdaoipecmcjeei\3.3.11_0\js\functions.js, Quarantined, [336], [583249],1.0.7409
Adware.SearchEngineHijack, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jmofklodkbiklgbefobdaoipecmcjeei\3.3.11_0\js\jquery-3.2.1.min.js, Quarantined, [336], [583249],1.0.7409
Adware.SearchEngineHijack, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jmofklodkbiklgbefobdaoipecmcjeei\3.3.11_0\js\popup.js, Quarantined, [336], [583249],1.0.7409
Adware.SearchEngineHijack, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jmofklodkbiklgbefobdaoipecmcjeei\3.3.11_0\js\wheesbee.js, Quarantined, [336], [583249],1.0.7409
Adware.SearchEngineHijack, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jmofklodkbiklgbefobdaoipecmcjeei\3.3.11_0\_locales\en\messages.json, Quarantined, [336], [583249],1.0.7409
Adware.SearchEngineHijack, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jmofklodkbiklgbefobdaoipecmcjeei\3.3.11_0\_locales\it\messages.json, Quarantined, [336], [583249],1.0.7409
Adware.SearchEngineHijack, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jmofklodkbiklgbefobdaoipecmcjeei\3.3.11_0\_metadata\computed_hashes.json, Quarantined, [336], [583249],1.0.7409
Adware.SearchEngineHijack, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jmofklodkbiklgbefobdaoipecmcjeei\3.3.11_0\_metadata\verified_contents.json, Quarantined, [336], [583249],1.0.7409
Adware.SearchEngineHijack, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jmofklodkbiklgbefobdaoipecmcjeei\3.3.11_0\bookmarks.html, Quarantined, [336], [583249],1.0.7409
Adware.SearchEngineHijack, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\jmofklodkbiklgbefobdaoipecmcjeei\3.3.11_0\manifest.json, Quarantined, [336], [583249],1.0.7409
Adware.SearchEngineHijack, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Local Extension Settings\jmofklodkbiklgbefobdaoipecmcjeei\000003.log, Quarantined, [336], [583249],1.0.7409
Adware.SearchEngineHijack, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Local Extension Settings\jmofklodkbiklgbefobdaoipecmcjeei\CURRENT, Quarantined, [336], [583249],1.0.7409
Adware.SearchEngineHijack, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Local Extension Settings\jmofklodkbiklgbefobdaoipecmcjeei\LOCK, Quarantined, [336], [583249],1.0.7409
Adware.SearchEngineHijack, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Local Extension Settings\jmofklodkbiklgbefobdaoipecmcjeei\LOG, Quarantined, [336], [583249],1.0.7409
Adware.SearchEngineHijack, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Local Extension Settings\jmofklodkbiklgbefobdaoipecmcjeei\MANIFEST-000001, Quarantined, [336], [583249],1.0.7409
Adware.SearchEngineHijack, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\Secure Preferences, Replaced, [336], [583249],1.0.7409
Adware.SearchEngineHijack, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\Preferences, Replaced, [336], [583249],1.0.7409

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

Save yourself the hassle and get protected.

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