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DirtyMoe botnet infected 100,000+ Windows systems in H1 2021

Security Affairs

The Windows botnet has been active since late 2017, it was mainly used to mine cryptocurrency, but it was also involved in DDoS attacks in 2018. “Recently, a new infection vector that cracks Windows machines through SMB password brute force is on the rise” reads the analysis published by AVAST.

DNS 129
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Ransomware Revival: Troldesh becomes a leader by the number of attacks

Security Affairs

To bypass antivirus systems, hackers send out malicious emails in non-working hours with delayed activation. The second half of 2018 saw a drop in the number of malicious programs downloaded via browsers reaching its minimum at less than 5%, while in the first half of 2019 only every 19 th download was initiated via means other than email.

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Attacks against game companies are up. But why?

SC Magazine

Malicious hackers are increasingly mobbing the video game industry, with major companies suffering data breaches, having their source code sold or leaked online and games serving as playgrounds to push malware or mine cryptocurrencies. billion attacks tracked by the company across different countries.

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StripedFly: Perennially flying under the radar

SecureList

Introduction It’s just another cryptocurrency miner… Nobody would even suspect the mining malware was merely a mask, masquerading behind an intricate modular framework that supports both Linux and Windows. During that time, it had effectively evaded analysis and had previously been misclassified as a cryptocurrency miner.

Malware 107
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Ransomware Protection in 2021

eSecurity Planet

For access to the decryption key, the victim must make prompt payment, often in cryptocurrency shielding the attacker’s identity. Ransomware frequently contains extraction capabilities that can steal critical information like usernames and passwords, so stopping ransomware is serious business. Update Anti-Ransomware Software.

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Who’s Behind the GandCrab Ransomware?

Krebs on Security

But GandCrab far eclipsed the success of competing ransomware affiliate programs largely because its authors worked assiduously to update the malware so that it could evade antivirus and other security defenses. In November 2018, a GandCrab affiliate posted a screenshot on the Exploit[.]in The GandCrab identity on Exploit[.]in

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IT threat evolution Q3 2023

SecureList

The attackers use the reverse shell to deploy a Bash stealer that collects data such as system information, browsing history, saved passwords, cryptocurrency wallet files and credentials for cloud services (AWS, Google Cloud, Oracle Cloud Infrastructure, Azure). Otherwise, the reverse shell is created by the crond backdoor itself.

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