Measures to prevent malware or ransomware infection□ Don’t click on links in spam, unexpected or suspicious emails.
- Never open attachments in emails from someone you don’t know.
Cybercriminals often distribute fake email messages that closely resemble
email notifications from an online store, a bank, the police, a court, or a tax
collection agency. They lure recipients into clicking on a malicious link that will
release the malware into their system.
- Be aware that any account can be compromised, and malicious links can besent from email and social media accounts of friends or colleagues.
□ Be wary while browsing the internet and do not click on suspicious
links, pop-ups, or dialogue boxes.
- Clicking on them might download malware to your systems, with the linkoften not leading to the intended website. If you aren't sure, run the website
through a search engine first to see if it really exists.
□ Browse and download only official versions of software and always
from trusted websites.
- If you are downloading something on your phone or tablet, make sure you
use reputable sources and stores, like the App Store (Apple) or Google PlayStore (Android). The best way to determine whether a website is fraudulent
is to pay close attention to the URL. The domain name in the URL shouldmatch the name of the website. An HTTPS connection and displaying thepadlock icon are signs of secure connection, but this doesn't mean you cantrust it.
□ Regularly back up data stored on your computer, so a ransomware
infection wouldn’t destroy your personal data forever.
□ Use robust security products and ensure that your security softwareand operating system are up to date.
- For Mac users, please use McAfee Endpoint Security for Mac which you candownload from the ISTC download system. For Windows users, please use
Windows Defender.
- Don't switch off the 'heuristic functions' to detect malware and ransomware.
- When your operating system (OS) or applications release a new version,install it. If the software offers the option of automatically installing updates,
take it.
□ Turn on local firewall.
- Turn on your local firewall to defend against unauthorized access.
• On Apple devices: System Preferences > Security & Privacy.
• On Windows devices: Start > Settings > Update & Security > Windows
Security > Firewall & network protection.
■ When it is suspected that an information security incident has
occurred on the university network,- The ISTC will first contact the GSICS IT Committee. The member of theCommittee will then contact the user of the terminal where the virus wasdetected. In this case, follow the instructions.
- First disconnect your computer from the network. In the case of a wirelessLAN, turn off the wireless function. Try not to shut it down in order to preserve
evidence.
- Once your computer is infected with a virus, it is highly likely that theinformation on your computer has been extracted and transmitted, so change
the passwords of all IDs registered (or used) with the web browser orapplications on that computer. Especially in the case of bank or credit card
related information, contact the company immediately and stop using themtemporarily.
- Follow the GSICS IT Committee's instructions for recovery. If a virus infection
is suspected, you will be instructed to work based on the investigation andresults of the antivirus software.
- Do not connect to the network until you have been authorized to do so by theGSICS IT Committee.
Cited from:• NO MORE RANSOM > Advice for regular users
https://www.nomoreransom.org/en/prevention-advice-for-users.html• 神戸大学 LMS BEEF ＞ Venture 情報基礎 2022 ＞３．インターネットの利用
https://venture.center.kobe-u.ac.jp/pluginfile.php/95820/mod_resource/content/0/johokiso3.pdf
IT Committee, GSICS