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TrendAI Security Blog

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Malware
IcedID Botnet Distributors Abuse Google PPC to Distribute Malware

We analyze the latest changes in IcedID botnet from a campaign that abuses Google pay per click (PPC) ads to distribute IcedID via malvertising attacks.

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Cyber threats
Detecting Windows AMSI Bypass Techniques

We look into some of the implementations that cybercriminals use to bypass the Windows Antimalware Scan Interface (AMSI) and how security teams can detect threats attempting to abuse it for compromise with Trend Micro Vision One™.

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APTs
Raspberry Robin Malware Targets Telecom, Governments

We found samples of the Raspberry Robin malware spreading in telecommunications and government office systems beginning September. The main payload itself is packed with more than 10 layers for obfuscation and is capable of delivering a fake payload once it detects sandboxing and security analytics tools.

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Cloud
Linux Cryptocurrency Mining Attacks Enhanced via CHAOS RAT

We intercepted a cryptocurrency mining attack that incorporated an advanced remote access trojan (RAT) named the CHAOS Remote Administrative Tool.

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APTs
Earth Preta Spear-Phishing Governments Worldwide

We break down the cyberespionage activities of advanced persistent threat (APT) group Earth Preta, observed in large-scale attack deployments that began in March. We also show the infection routines of the malware families they use to infect multiple sectors worldwide: TONEINS, TONESHELL, and PUBLOAD.

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Zero trust
Zero Trust: Enforcing Business Risk Reduction Through Security Risk Reduction

Unlike traditional legacy trust models where security is not always present in all cases, Zero Trust revolves around an ”always-on everywhere” approach.

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Ransomware & extortion
LV Ransomware Exploits ProxyShell in Attack on a Jordan-based Company

Our blog entry provides a look at an attack involving the LV ransomware on a Jordan-based company from an intrusion analysis standpoint

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Cyber threats
Black Basta Ransomware Gang Infiltrates Networks via QAKBOT, Brute Ratel, and Cobalt Strike

We analyzed a QAKBOT-related case leading to a Brute Ratel C4 and Cobalt Strike payload that can be attributed to the threat actors behind the Black Basta ransomware.

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Exploits & Zero-Days
Bridging Security Gaps in WFH and Hybrid Setups

Remote and hybrid workplaces are now the norm. We highlight some risks and threats to these setups and detail recommendations for organizations to keep their diffused labor pool secure.

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Ransomware & extortion
Play Ransomware's Attack Playbook Similar to that of Hive, Nokoyawa

Play is a new ransomware that takes a page out of Hive and Nokoyawa's playbook. The many similarities among them indicate that Play, like Nokoyawa, are operated by the same people.

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