Microsoft has just released an advisory disclosing how a flaw in the Windows Firewall graphical user interface may hide an exception from showing up in the Exceptions list. This unexpected behavior is be triggered by a malformed registry entry. Windows Firewall is configured to block incoming network connections by default. However, a system administrator can…Read More
We spotted two variants of activities from hacking group Outlaw. The script used in the first version of its bot has two functionalities: the miner and Haiduc-based dropper. The second variant of the code, distributed by the bot, was mainly designed to brute force and further exploit the Microsoft Remote Desktop Protocol and cloud administration cPanel in order to escalate the privileges.Read More
We uncovered an operation of a hacking group, which we’re naming “Outlaw” (translation derived from the Romanian word haiduc, the hacking tool the group primarily uses), involving the use of an IRC bot built with the help of Perl Shellbot. The group distributes the bot by exploiting a common command injection vulnerability on internet of things (IoT) devices and Linux servers. Further research indicates that the threat can also affect Windows-based environments and even Android devices.Read More
We recently observed cases of abuse of the systems running misconfigured Docker engine with Docker application program interface (API) ports exposed. We also noticed that the malicious activities were focused on scanning for open ports 2375/TCP and 2376/TCP, which are used by the Docker engine daemon (dockerd). The intrusion attempts to deploy a cryptocurrency-mining malware (detected by Trend Micro as Coinminer.SH.MALXMR.ATNE) on the misconfigured systems.
Docker implements virtualization on the operating-system (OS) level — also known as containerization. The Docker APIs, in particular, allow remote users to control Docker images like a local Docker client does. Opening the API port for external access is not recommended, as it can allow hackers to abuse this misconfiguration for malicious activities.Read More
We have been observing a malvertising campaign via Rig exploit kit delivering a cryptocurrency-mining malware and the GandCrab ransomware since July 25. On August 1, we found Rig’s traffic stream dropping a then-unknown ransomware. Delving into this seemingly new ransomware, we checked its ransom payment page in the Tor network and saw it was called Princess Evolution (detected by Trend Micro as RANSOM_PRINCESSLOCKER.B), and was actually a new version of the Princess Locker ransomware that emerged in 2016. Based on its recent advertisement in underground forums, it appears that its operators are peddling Princess Evolution as a ransomware as a service (RaaS) and are looking for affiliates.Read More