Cybersecurity experts have recently identified a significant series of cyberattacks targeting poorly managed Microsoft SQL (MS-SQL) servers. These attacks have been traced back to a group known as the TargetCompany ransomware group, which has been deploying the Mallox ransomware. This malicious software seeks to encrypt the system’s data, rendering it inaccessible to its owners unless a ransom is paid. This campaign mirrors previous security threats involving other forms of ransomware and coin miners, suggesting a continued vulnerability in digital security infrastructures.
The TargetCompany group’s strategy involves exploiting weak points in MS-SQL server management, specifically through brute force and dictionary attacks aimed at the System Administrator (SA) account. After gaining entry, they deploy the Remcos Remote Access Tool (RAT), which allows them deep control over the compromised systems. This initial foothold is then used to install further malicious software, including remote screen control malware, eventually leading up to the installation of the Mallox ransomware.
In response to these threats, the AhnLab Security Intelligence Center has reported an uptick in attacks on MS-SQL servers aimed at deploying ransomware. The use of Remcos RAT, originally designed for legitimate remote management, is particularly alarming as it has been repurposed for malicious intent. The RAT’s capabilities allow attackers not only to steal information but also to deploy additional malware without easy detection, highlighting the sophistication of these attacks.
The ongoing situation underscores the necessity for stronger cybersecurity measures, including stringent password policies, regular system updates, and the deployment of advanced security solutions. As the digital landscape evolves, so too do the strategies of cyber attackers, making it imperative for system administrators to remain vigilant and proactive in defending against these sophisticated and persistent threats. The shared characteristics between these and previous attacks indicate a potentially larger pattern of threat behavior, requiring ongoing attention and adaptation from cybersecurity professionals.
