Dear Members of Koç University,

The ransomware “WannaCry” affected hundreds of thousands of computers in 150 countries since last Friday. The ransomware attacks corporate networks more intensively using “phishing” e-mail messages and the vulnerabilities in Windows operating system.

Please read the warning below, in order to avoid the ransomware, which spreads through e-mails.

Sample e-Mail: Ransomware Screen:

 

Security Risks:

·The e-mail contains a Word, Excel, PDF file or a link to make the user download the ransomware.

·The ransomware which steals into the corporate network through e-mail, spreads between other computers using a vulnerability in Windows operating system.

·When executed, the ransomware encrypts all of your personal files on your computer and demands a ransom to decrypt them back. The payment does not guarantee that your files will be back. Instead, you may fall into a blackmailing trap. Security experts does not recommend to make the payment.

·The ransomware also encrypts your shared files on network.

 

What To Do #1: Windows Security Updates

Please install the appropriate Windows security update, which matches your operating system version, following the related link below. You can contact IT Service Desk for support (1111 / it@ku.edu.tr)

Windows 7 32 bit: https://drive.google.com/open?id=0B8TnU3Ky-mHSU3lMUExOOEZwZVE

Windows 7 64 bit: https://drive.google.com/open?id=0B8TnU3Ky-mHSSnB4ZElYUXAzQVU

Windows 8.1 32 bit: https://drive.google.com/open?id=0B8TnU3Ky-mHSMTBLUU9mN1poU2s

Windows 8.1 64 bit: https://drive.google.com/open?id=0B8TnU3Ky-mHSbkt5bHBQWnVaUms

Windows 10 Version 1511 32 bit: https://drive.google.com/open?id=0B8TnU3Ky-mHSUnBaSlhuZC1SczA

Windows 10 Version 1511 64 bit: https://drive.google.com/open?id=0B8TnU3Ky-mHScF9Ib25NWS1abDA

Windows 10 Version 1607 (Annual Update 2016) 32 bit: https://drive.google.com/open?id=0B8TnU3Ky-mHSSTI1c2pxbUpXMDQ

Windows 10 Version 1607 (Annual Update 2016) 64 bit: https://drive.google.com/open?id=0B8TnU3Ky-mHSM1NHdmFFdXo0aVk

 

Always keep your automatic Windows updates enabled.

 

What To Do #2: Antivirus Software

 

Please make sure your antivirus software is active and up-to-date.

 

IT Directorate provides McAfee antivirus software on corporate computers. You can check if the software is active and up-to-date by the icon on the bottom right corner. You can contact IT Service Desk for support (1111 / it@ku.edu.tr)

You can use Windows Defender or another trusted antivirus program on your personal computer.

 

What To Do #3: Other

 

·Do not open any suspicious e-mail messages.

·Be careful with your personal e-mail addresses as well as KU e-mails.

·You are more likely to encounter a malware when accessing the Internet outside of KU network.

·Report all suspicious e-mails to IT Service Desk (it@ku.edu.tr / 1111).

 

Best Regards,

Information Technology

 

For questions and help:

Ticket: https://it-trackit.ku.edu.tr

Email: it@ku.edu.tr

Phone: 1111 or +90-212-338 1111

Service Desk Location:Student Center -1. Floor, Next to Post Office