The origin of the hijackers

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In addition to talking about the new families, TrendMicro showed what the origins of the ransomware attacks are.

In addition to talking about the new families, TrendMicro showed what the origins of the ransomware attacks are. Today, only 43% of all kidnappings manage to have the source identified by analysts. With this sampling, it is understood that the overwhelming majority of cases happen because of spam. 

Leading this ungrateful ranking, spam contamination dominates with 71% of attacks. The second place goes to the “Exploit kits” (attacks by vulnerabilities on servers), which appears much later, with 18%. Next are attacks by direct vulnerability, with 5%. At 3%, cases of malicious code downloads by app stores and remote access systems are tied.

BEC: When an email affects a company
Another ranking in which Brazil appears in an ungrateful position is that of countries that are most affected by BEC (Business Email Compromise). In this case, Brazil is the fifth most affected and may continue to be because of errors caused by the users themselves. This type of attack does not happen with high-level malware, but relies on human error to be able to spread.

 

Criminals send emails to high-ranking employees of companies, using fake accounts that mimic those of superiors in the same company. Using “social engineering”, they deceive victims and cause them to send money to their accounts. Generally, this type of technique involves suppliers and false purchases of products for production lines, for example.

This type of scam also involves phishing emails and attempted attacks by sophisticated malware, although this type of situation is more rare. Check below the ranking of the five countries most affected by BEC in the first half and also the number of companies affected by the scheme, which has already caused losses close to US $ 3 billion.

United States: 2,496
United Kingdom: 595
Hong Kong: 226
Japan: 218
Brazil: 186

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