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Removal instructions for WeatherChickn

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What is WeatherChickn?

The Malwarebytes research team has determined that WeatherChickn 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 WeatherChickn?

You may see this entry in your list of installed programs:


and these changes in your hosts file:


How did WeatherChickn get on my computer?

Adware applications use different methods for distributing themselves. This particular one was bundled with other software.

How do I remove WeatherChickn?

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.
Is there anything else I need to do to get rid of WeatherChickn?
  • No, Malwarebytes' Anti-Malware removes WeatherChickn completely.
How would the full version of Malwarebytes Anti-Malware 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 Anti-Malware would have protected you against the WeatherChickn 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:
 Hosts: There are more than one entry in Hosts. See Hosts section of Addition.txt
 C:\Program Files (x86)\375D1DF7-1462361057-8E49-8BD4-E310261BD110

WeatherChickn (HKLM-x32\...\WeatherChickn) (Version:  - WeatherChickn)       down.baidu2016.com       123.sogou.com       www.czzsyzgm.com       www.czzsyzxl.com       union.baidu2019.com
Alterations made by the installer:

File system details [View: All details] (Selection)
    Adds the folder C:\Program Files (x86)\375D1DF7-1462361057-8E49-8BD4-E310261BD110
       Adds the file Uninstall.exe"="5/4/2016 1:24 PM, 92583 bytes, A
       Adds the file vnsr5EF4.tmp"="5/3/2016 3:36 PM, 1022234 bytes, A
    Adds the folder C:\Users\{username}\AppData\Roaming\WeatherChickn
       Adds the file Uninstall.exe"="5/4/2016 1:24 PM, 92583 bytes, A
       Adds the file WeatherChickn.exe"="5/3/2016 3:36 PM, 1022234 bytes, A
    In the existing folder C:\Windows\System32\drivers\etc
       Alters the file hosts

Registry details [View: All details] (Selection)
       "DisplayIcon"="REG_SZ", ""C:\Users\{username}\AppData\Roaming\WeatherChickn\Uninstall.exe""
       "DisplayName"="REG_SZ", "WeatherChickn"
       "Publisher"="REG_SZ", "WeatherChickn"
       "Source"="REG_SZ", "53463750"
       "Stats"="REG_SZ", "-2"
       "UninstallString"="REG_SZ", ""C:\Users\{username}\AppData\Roaming\WeatherChickn\Uninstall.exe""
       "ver_build"="REG_SZ", "1462285327"
       "ver_inst"="REG_SZ", "1462361057"
Malwarebytes Anti-Malware log:
Malwarebytes Anti-Malware

Scan Date: 5/4/2016
Scan Time: 3:03 PM
Logfile: mbamWeatherChicken.txt
Administrator: Yes

Malware Database: v2016.05.04.04
Rootkit Database: v2016.04.17.01
License: Premium
Malware Protection: Enabled
Malicious Website Protection: Enabled
Self-protection: Enabled

OS: Windows 7 Service Pack 1
CPU: x64
File System: NTFS
User: {username}

Scan Type: Threat Scan
Result: Completed
Objects Scanned: 365606
Time Elapsed: 10 min, 23 sec

Memory: Enabled
Startup: Enabled
Filesystem: Enabled
Archives: Enabled
Rootkits: Enabled
Heuristics: Enabled
PUP: Enabled
PUM: Enabled

Processes: 0
(No malicious items detected)

Modules: 0
(No malicious items detected)

Registry Keys: 2
Adware.ConvertAd, HKLM\SOFTWARE\WOW6432NODE\MICROSOFT\WINDOWS\CURRENTVERSION\UNINSTALL\WeatherChickn, Quarantined, [ffe508c95e3bb77fa19870a0cd3534cc], 
PUP.Optional.WeatherChicken, HKLM\SOFTWARE\WOW6432NODE\MICROSOFT\WINDOWS\CURRENTVERSION\UNINSTALL\WeatherChickn, Quarantined, [09dbaf22623786b0cffeaf0e5aaacc34], 

Registry Values: 0
(No malicious items detected)

Registry Data: 0
(No malicious items detected)

Folders: 2
PUP.Optional.ConvertAd.Gen, C:\Program Files (x86)\375D1DF7-1462361057-8E49-8BD4-E310261BD110, Quarantined, [da0af0e17f1ab4827d4f8728bb4911ef], 
PUP.Optional.WeatherChicken, C:\Users\{username}\AppData\Roaming\WeatherChickn, Quarantined, [09dbaf22623786b0cffeaf0e5aaacc34], 

Files: 7
Adware.ConvertAd, C:\Users\{username}\AppData\Roaming\WeatherChickn\Uninstall.exe, Quarantined, [ffe508c95e3bb77fa19870a0cd3534cc], 
Adware.ConvertAd, C:\Users\{username}\Desktop\nsc5.exe, Quarantined, [964e2ea330692a0cc97031df9072cf31], 
Adware.ConvertAd, C:\Program Files (x86)\375D1DF7-1462361057-8E49-8BD4-E310261BD110\Uninstall.exe, Quarantined, [2eb6dcf5d8c1b48255e4d23e1de50bf5], 
Adware.ConvertAd, C:\Program Files (x86)\375D1DF7-1462361057-8E49-8BD4-E310261BD110\vnsr5EF4.tmp, Quarantined, [6f7511c0a6f383b3ea4f20f0dc261ae6], 
PUP.Optional.ConvertAd.Gen, C:\Program Files (x86)\375D1DF7-1462361057-8E49-8BD4-E310261BD110\vnsr5EF4.tmp, Quarantined, [da0af0e17f1ab4827d4f8728bb4911ef], 
PUP.Optional.ConvertAd.Gen, C:\Program Files (x86)\375D1DF7-1462361057-8E49-8BD4-E310261BD110\Uninstall.exe, Quarantined, [da0af0e17f1ab4827d4f8728bb4911ef], 
PUP.Optional.WeatherChicken, C:\Users\{username}\AppData\Roaming\WeatherChickn\Uninstall.exe, Quarantined, [09dbaf22623786b0cffeaf0e5aaacc34], 

Physical Sectors: 0
(No malicious items detected)

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
Save yourself the hassle and get protected.
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