What is Quick Ref?
The Malwarebytes research team has determined that Quick Ref 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 Quick Ref?
You may see this entry in your list of installed programs:

and these advertisements:

During install you may see:

How did Quick Ref get on my computer?
Adware applications use different methods for distributing themselves. This particular one was bundled with other software.
How do I remove Quick Ref?
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 Quick Ref 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 Quick Ref 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: Quick Ref 1.10.0.8 Client Service (qrsvc_1.10.0.8) - Quick Ref - C:\Program Files\QuickRef_1.10.0.8\Service\qrsvc.exeYou may see these entries in a FRST log:
(Quick Ref) C:\Program Files\QuickRef_1.10.0.8\Service\qrsvc.exe R2 qrsvc_1.10.0.8; C:\Program Files\QuickRef_1.10.0.8\Service\qrsvc.exe [278592 2015-01-21] (Quick Ref) R1 qrnfd_1_10_0_8; C:\Windows\System32\drivers\qrnfd_1_10_0_8.sys [52720 2015-01-21] (Quick Ref) () C:\Program Files\QuickRef_1.10.0.8 (Quick Ref) C:\Windows\system32\Drivers\qrnfd_1_10_0_8.sysAlterations made by the installer:
File system details --------------------------------------------- Adds the folder C:\Program Files\QuickRef_1.10.0.8 Adds the file terms-of-service.rtf"="1/17/2015 12:53 AM, 24062 bytes, A Adds the file Uninstall.exe"="1/21/2015 8:39 PM, 315136 bytes, A Adds the folder C:\Program Files\QuickRef_1.10.0.8\3rd Party Licenses Adds the file buildcrx-license.txt"="5/19/2014 9:10 PM, 7074 bytes, A Adds the file Info-ZIP-license.txt"="5/19/2014 9:10 PM, 2944 bytes, A Adds the file JSON-simple-license.txt"="10/30/2014 2:55 AM, 11558 bytes, A Adds the file nsJSON-license.txt"="5/19/2014 9:10 PM, 809 bytes, A Adds the file Nustache-license.txt"="10/30/2014 2:55 AM, 1079 bytes, A Adds the file TaskScheduler-license.txt"="10/30/2014 2:55 AM, 0 bytes, A Adds the file UAC-license.txt"="5/19/2014 9:10 PM, 956 bytes, A Adds the folder C:\Program Files\QuickRef_1.10.0.8\Service Adds the file qrsvc.exe"="1/21/2015 8:39 PM, 278592 bytes, A In the existing folder C:\Windows\System32\drivers Adds the file qrnfd_1_10_0_8.sys"="1/21/2015 8:38 PM, 52720 bytes, A Registry details ------------------------------------------ [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\QuickRef_1.10.0.8] "DisplayIcon"="REG_SZ", "C:\Program Files\QuickRef_1.10.0.8\Uninstall.exe" "DisplayName"="REG_SZ", "Quick Ref 1.10.0.8" "DisplayVersion"="REG_SZ", "1.10.0.8" "NoModify"="REG_DWORD", 1 "NoRepair"="REG_DWORD", 1 "Publisher"="REG_SZ", "Quick Ref" "UninstallString"="REG_SZ", "C:\Program Files\QuickRef_1.10.0.8\Uninstall.exe" "URLInfoAbout"="REG_SZ", "http://www.quickrefapp.com" [HKEY_LOCAL_MACHINE\SOFTWARE\QuickRef_1.10.0.8] "cr-at"="REG_SZ", "" "cr-pid"="REG_SZ", "" "cr-ver"="REG_SZ", "39.0.2171.95" "dbsr"="REG_SZ", "iexplore" "features"="REG_SZ", "0x01000000" "ff-at"="REG_SZ", "" "ff-pid"="REG_SZ", "" "ff-ver"="REG_SZ", "25.0 (en-US)" "hid"="REG_SZ", "EAB871D2-7CB3-316A-5E47-5DCF98DEC0A8" "ie-at"="REG_SZ", "" "ie-pid"="REG_SZ", "" "ie-ver"="REG_SZ", "11.0.9600.17501" "iid"="REG_SZ", "00000000-0000-0000-0000-000000000000" "itm"="REG_SZ", "2015-02-03T11:37:29Z" "nf-at"="REG_SZ", "CA84E9B0-1CB5-2ADA-A813-E2DBF396627C" "nf-pid"="REG_SZ", "9EB3AE2C-47D2-4CC7-BE91-C23A766C7BA2" "nid"="REG_SZ", "8D41449E-BF91-4FFA-A606-498E2B5BF005" "osn"="REG_SZ", "Windows 7 Ultimate N" "ost"="REG_SZ", "x32" "osv"="REG_SZ", "6.1.7601" "user_sid"="REG_SZ", "S-1-5-21-4016700205-1717049133-1125222536-1001" "ver"="REG_SZ", "1.10.0.8" [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\qrnfd_1_10_0_8] "DisplayName"="REG_SZ", "qrnfd_1_10_0_8" "ErrorControl"="REG_DWORD", 1 "Group"="REG_SZ", "PNP_TDI" "ImagePath"="REG_EXPAND_SZ, "system32\drivers\qrnfd_1_10_0_8.sys" "Start"="REG_DWORD", 1 "Tag"="REG_DWORD", 10 "Type"="REG_DWORD", 1 [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\qrnfd_1_10_0_8\Enum] "0"="REG_SZ", "Root\LEGACY_QRNFD_1_10_0_8\0000" "Count"="REG_DWORD", 1 "NextInstance"="REG_DWORD", 1 [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\qrsvc_1.10.0.8] "Description"="REG_SZ", "This service enables Quick Ref 1.10.0.8 on HTTP websites" "DisplayName"="REG_SZ", "Quick Ref 1.10.0.8 Client Service" "ErrorControl"="REG_DWORD", 1 "ImagePath"="REG_EXPAND_SZ, ""C:\Program Files\QuickRef_1.10.0.8\Service\qrsvc.exe"" "ObjectName"="REG_SZ", "LocalSystem" "Start"="REG_DWORD", 2 "Type"="REG_DWORD", 16Malwarebytes Anti-Malware log:
Malwarebytes Anti-Malware www.malwarebytes.org Scan Date: 2/3/2015 Scan Time: 12:46:54 PM Logfile: mbamQuickRef.txt Administrator: Yes Version: 2.00.4.1028 Malware Database: v2015.02.03.04 Rootkit Database: v2015.01.14.01 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: 290082 Time Elapsed: 3 min, 27 sec Memory: Enabled Startup: Enabled Filesystem: Enabled Archives: Enabled Rootkits: Disabled Heuristics: Enabled PUP: Enabled PUM: Enabled Processes: 1 PUP.Optional.QuickRef.A, C:\Program Files\QuickRef_1.10.0.8\Service\qrsvc.exe, 2784, Delete-on-Reboot, [7e92e13988023501875a53c3d23044bc] Modules: 0 (No malicious items detected) Registry Keys: 4 PUP.Optional.QuickRef.A, HKLM\SYSTEM\CURRENTCONTROLSET\SERVICES\qrsvc_1.10.0.8, Quarantined, [7e92e13988023501875a53c3d23044bc], PUP.Optional.QuickRef.A, HKLM\SYSTEM\CURRENTCONTROLSET\SERVICES\qrnfd_1_10_0_8, Quarantined, [799768b291f937ff09d841d57e8401ff], PUP.Optional.QuickRef.A, HKLM\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\UNINSTALL\QuickRef_1.10.0.8, Quarantined, [ca4681995d2dc670835eab6b7d85af51], PUP.Optional.QuickRef.A, HKLM\SOFTWARE\QuickRef_1.10.0.8, Quarantined, [8789d34767233204a88a206107fc7888], Registry Values: 0 (No malicious items detected) Registry Data: 0 (No malicious items detected) Folders: 3 PUP.Optional.QuickRef.A, C:\Program Files\QuickRef_1.10.0.8, Delete-on-Reboot, [1000b664eaa0df57f6859de3ad56669a], PUP.Optional.QuickRef.A, C:\Program Files\QuickRef_1.10.0.8\3rd Party Licenses, Quarantined, [1000b664eaa0df57f6859de3ad56669a], PUP.Optional.QuickRef.A, C:\Program Files\QuickRef_1.10.0.8\Service, Delete-on-Reboot, [1000b664eaa0df57f6859de3ad56669a], Files: 17 PUP.Optional.QuickRef.A, C:\Program Files\QuickRef_1.10.0.8\Service\qrsvc.exe, Delete-on-Reboot, [7e92e13988023501875a53c3d23044bc], PUP.Optional.QuickRef.A, C:\Windows\System32\drivers\qrnfd_1_10_0_8.sys, Quarantined, [799768b291f937ff09d841d57e8401ff], PUP.Optional.QuickRef.A, C:\Users\{username}\Desktop\quickref-setup-1.10.0.8.exe, Quarantined, [0b0583978efcdd59469b45d14db5867a], PUP.Optional.QuickRef.A, C:\Program Files\QuickRef_1.10.0.8\Uninstall.exe, Quarantined, [ca4681995d2dc670835eab6b7d85af51], PUP.Optional.Vitruvian.A, C:\Users\{username}\AppData\Local\Temp\vitruvian-installer-hardwareprofile-v0001, Quarantined, [d937b06ab6d4d165b7cfdc2c957043bd], PUP.Optional.Vitruvian.A, C:\Users\{username}\AppData\Local\Temp\vitruvian-installer-install-v0003, Quarantined, [26ea3bdfabdf0e28097d9e6afa0b1de3], PUP.Optional.Vitruvian.A, C:\Users\{username}\AppData\Local\Temp\vitruvian-installer-processes-v0002, Quarantined, [21ef5ac00b7f65d17610f3150afbda26], PUP.Optional.Vitruvian.A, C:\Users\{username}\AppData\Local\Temp\vitruvian-installer-scheduledtasks-v0001, Quarantined, [3dd31208fb8f4ee8533355b343c207f9], PUP.Optional.Vitruvian.A, C:\Users\{username}\AppData\Local\Temp\vitruvian-installer-softwareregkeys-v0002, Quarantined, [719f0d0db7d3a88e23635badf80d629e], PUP.Optional.QuickRef.A, C:\Program Files\QuickRef_1.10.0.8\terms-of-service.rtf, Quarantined, [1000b664eaa0df57f6859de3ad56669a], PUP.Optional.QuickRef.A, C:\Program Files\QuickRef_1.10.0.8\3rd Party Licenses\buildcrx-license.txt, Quarantined, [1000b664eaa0df57f6859de3ad56669a], PUP.Optional.QuickRef.A, C:\Program Files\QuickRef_1.10.0.8\3rd Party Licenses\Info-ZIP-license.txt, Quarantined, [1000b664eaa0df57f6859de3ad56669a], PUP.Optional.QuickRef.A, C:\Program Files\QuickRef_1.10.0.8\3rd Party Licenses\JSON-simple-license.txt, Quarantined, [1000b664eaa0df57f6859de3ad56669a], PUP.Optional.QuickRef.A, C:\Program Files\QuickRef_1.10.0.8\3rd Party Licenses\nsJSON-license.txt, Quarantined, [1000b664eaa0df57f6859de3ad56669a], PUP.Optional.QuickRef.A, C:\Program Files\QuickRef_1.10.0.8\3rd Party Licenses\Nustache-license.txt, Quarantined, [1000b664eaa0df57f6859de3ad56669a], PUP.Optional.QuickRef.A, C:\Program Files\QuickRef_1.10.0.8\3rd Party Licenses\TaskScheduler-license.txt, Quarantined, [1000b664eaa0df57f6859de3ad56669a], PUP.Optional.QuickRef.A, C:\Program Files\QuickRef_1.10.0.8\3rd Party Licenses\UAC-license.txt, Quarantined, [1000b664eaa0df57f6859de3ad56669a], 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