Add Ukrainian Security Filter

[crisukbot]

Hi, please add Ukrainian Security Filter, link

Ukrainian Security Filter (Український безпековий фільтр) is a filter of malicious web resources (phishing, online fraud, malware, etc.) targeting Ukrainian citizens.

Every day, attackers activate new malicious web resources that are used to deceive Ukrainians into disclosing access to bank online systems, payment card details, confidential information, and money. Dozens of new domain names are registered daily, which will later be used in new phishing campaigns and online fraud. Under such circumstances, blocking malicious web resources only by domain name is not effective.

That is why the Ukrainian Security Filter contains three groups of filtering rules:

• Standard rules (domain-based blocklist) is a list of blocks by domain name.
• Individual rules (page-specific filtering rules) allow you to block pages on social networks, links to groups or chatbots in messengers, etc., i.e., target web addresses (URLs) of resources that are legitimate, however, which are used by attackers.
• Universal rules (pattern-based filtering rules) allow you to block malicious web resources, even if information about the domain names of such resources is not present in the filter, since blocking occurs based on patterns.