Clop ransomware is a member of the CryptoMix family known to infect Microsoft Windows operating systems. The Russian word ‘clop’ translates to “a bug” in English. The APT group known as TA505 uses ransomware widely as a final payload to target a system’s whole network, as opposed to a single machine. This virus functions by encrypting a file and appending the extension “.clop.” After successfully encrypting the file, the virus generates “ClopReadMe.txt” and places a copy in each folder. This file also includes the ransom note.
It was recently uncovered that the threat group had stolen 2 million credit card numbers via POS malware and threatened to demand a $20 million ransom from a German business as well.
How can individuals stay protected from Clop Ransomware?
- Be cautious when using computers. Lack of information and negligence are the fundamental reasons for computer virus infestations. So be careful when browsing the internet and downloading, installing, and upgrading software.
- Always open email attachments with caution. If the sender’s email address appears suspicious or unusual, do not open the attachment.
- Only use direct download links from authorized sources, as malicious programs are commonly distributed via third-party downloaders and installers. Updating software packages are required to keep installed software up to date and secure. The most secure method is to use tools or created features provided by the official developer.
- Using pirated software with software cracking tools is illegal and should never be done. You essentially steal intellectual property from software developers and do not pay them. Furthermore, because these tools are regularly used to transmit malware, the risk of malware infection is high.
- Blocking a C2 (Command and Control) connection in the middle of an infection chain can prevent malware from propagating. To accomplish such activities, use web filters. One of the most important tactics for preventing ransomware from infiltrating a machine or network is to deploy an effective endpoint security solution.
- If the machine has already been infected with the Clop ransomware, run a Windows antivirus tool to remove it. Install and run a reliable antivirus and antispyware software regularly; these capabilities can assist you in detecting and eliminating malware before it causes any harm. If Clop is already p in your system, we recommend running a scan with any NGAV (Next-Generation Antivirus) solution to eradicate the malware.
How can businesses stay protected from Clop Ransomware?
- Make a list of your resources and data, identify software/hardware that is legitimately necessary for business objectives, and audit incident and event logs.
- Manage software and hardware configurations. Allow admin rights and access only when necessary for an employee to accomplish his tasks. Keep a watch on the network’s services, protocols, and ports. Configure the security settings on routers and other network infrastructure devices. Make a software allow list that only allows legitimate and pre-approved programs to run.
- Conduct regular vulnerability assessments. Patch operating systems and software both physically and remotely. Install the most recent software and application versions to address zero-day vulnerabilities published by threat actors.
- Put measures in place for data recovery, backup, and asset protection. Set up MFA (Multifactor Authentication), ZTNA (Zero Trust Network Access), and PoLP (Principle of Least Privilege).
- Stop phishing emails through sandbox analysis. Install the most recent security updates on the system’s email, endpoint, web, and network layers. Also, implement sophisticated detection methods to identify early warning signals of an attack, such as the existence of suspicious tools on the system.
- Employees should be subjected to regular security training and review. Perform penetration testing and red-team drills.
Centex Technologies provides cyber security solutions for businesses. For more information about how to stay protected, contact Centex Technologies at Killeen (254) 213 – 4740, Dallas (972) 375 – 9654, Atlanta (404) 994 – 5074, and Austin (512) 956 – 5454.