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Güvenlik Blogu

TrendAI Güvenlik Blogu

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Cyber crimeMalware
KOVTER: An Evolving Malware Gone Fileless

KOVTER is one example of a constantly evolving malware. Initially starting out as a police ransomware, it eventually evolved into a much more effective and evasive fileless malware. Here is a closer look at KOVTER, and how organizations can lessen its impact.

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Cyber threats
Android Backdoor GhostCtrl Records Your Audio, Video

The RETADUP worm that affected Israeli hospitals turned out have bigger impact than we first thought. It was accompanied by an even more dangerous threat: an Android malware that can take over the device. We’ve named this Android backdoor GhostCtrl.

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Cyber crimeCryptocurrency
Security 101: The Impact of Cryptocurrency-Mining Malware

As cryptocurrencies like bitcoin are more widely used, so will the threats that cybercriminals use to abuse it. Here’s a closer look at cryptocurrency-mining malware—their emergence in the threat landscape, impact, and some countermeasures against them.

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Cyber crime
Frequently Asked Questions: The Petya Ransomware Outbreak

The Petya ransomware family has reemerged, becoming one of the most impactful yet. Is it similar to WannaCry? Does it have a kill switch? Here are some frequently asked questions about the threat.

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APTs
The Trail of BlackTech’s Cyber Espionage Campaigns

Following the activities and evolving tactics of cyberespionage group BlackTech helped us uncover the proverbial red string of fate that connected three seemingly disparate campaigns: PLEAD, Shrouded Crossbow, and of late, Waterbear.

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Ransomware & extortion
Erebus Resurfaces as Linux Ransomware

On June 10, South Korean web hosting company NAYANA was hit by Erebus ransomware (detected by Trend Micro as RANSOM_ELFEREBUS.A), infecting 153 Linux servers and over 3,400 business websites the company hosts.

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Erebus Linux Ransomware: Impact to Servers and Countermeasures

A South Korean web hosting company was hit by a Linux version of the Erebus ransomware. Here’s what you need to know about the threat and what sysadmins can do to defend against it.

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Security 101: The Rise of Fileless Threats that Abuse PowerShell

Filess malware that abuse Windows’ PowerShell are now increasingly becoming more common—from ransomware, click-fraud malware to Trojan downloaders. Here’s a closer look on how to mitigate these threats.

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WannaCry/Wcry Ransomware: How to Defend against It

Here’s what you need to know about this ongoing threat and what you can do to protect against it.

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Persirai: New IoT Botnet Targets IP Cameras

A new IoT botnet called Persirai has been discovered targeting over 1,000 IP Camera models based on various Original Equipment Manufacturer (OEM) products.

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