Internet Security Week - Edition No. 116

In Edition No. 116 of Internet Security Week , Ransomware has already reached half of Brazil's companies, malware in Windows event logs, Word and PDF script failures and more.

News

Ransomware becomes more sophisticated and has already reached half of Brazil's companies

A portion of 55% of Brazilian companies were hit by at least one ransomware scam by 2021, a data that accompanies the global growth of growth in the number of attacks and serves only as a gateway to a scenario of greater sophistication and professionalization of cybercrime.

By Felipe Demartini in Canaltech

Group exposes stolen documents of high standard real estate of SP

The Self -Denominated Matron Group, which on March 7 and 8 began publishing documents with the timbre of the Lopes Prime real estate. The large leakage of documents apparently downloaded from the company's network or a plus company: there are 1539 image files (JPG and PDF), a total of 606 megabytes.

By Paulo Brito in Ciso Advisor

The 3 most dangerous types of malware for Android

Find out which are the most dangerous types of malware for Android and understand how they can reach devices with this operating system.

By Lukas Stefanko in We Live Security

Hackers now hide malware on Windows event logs

Security researchers noticed a malicious campaign that used Windows event logs to store malware, a technique that had not been publicly documented previously for wild attacks.

By ionut ilasu in bleeding computer

Researchers find 134 faults in how Word and PDFs work with scripts

Researchers have created a tool that detects failures in the way Microsoft Word and Adobe Acrobat process JavaScript, and proved so effective that it found 134 bugs. 59 of them considered worthy of correction by suppliers.

By Simon Sharwood in The Register

How to block pornography and violence sites with MikroTik?

This question is common for network administrators who use Mikrotik to control the internet. After all, the action of blocking pornography and violence sites helps to prevent children's exposure to explicit content in home networks and children's schools, or in the waste of employees' time in corporate networks.

By Aléx de Oliveira at Lumun Blog

Fake WHO Email distributes undetectable trojan to antiviruses

A new remote access throes was identified by Proofpoint security firm. The threat, named Nerbian Rat, has several functions, with emphasis on the possibility of escaping detection by security solutions. Its distribution is made from false communications of the World Health Organization.

By Dácio Castelo Branco in Canaltech

21% of corporate PCs in Brazil were at risk in 2021

Users of corporate PC worldwide had an average of 15.1% chance of finding a threat last year, while in Brazil this percentage was 21%, which places the country in 39th among the 77 nations included in the Avast Global Risk Risk Risk Report.

In Ciso Advisor