BruteEntry
BruteEntry is a malware family known for its use of brute-force techniques to gain unauthorized access to systems. It primarily targets systems with weak or default credentials, exploiting vulnerabilities in password security. BruteEntry is often used by threat actors to establish a foothold in a network, enabling further malicious activities such as data exfiltration or deployment of additional malware. As of October 2023, BruteEntry remains a significant threat due to its adaptability and the continued prevalence of weak password practices.
Overview
BruteEntry is a type of malware that employs brute-force attacks to compromise systems. A brute-force attack involves systematically trying a multitude of password combinations until the correct one is found. This method is effective against systems with weak or default passwords. BruteEntry is typically used by cybercriminals to gain initial access to a network, which can then be exploited for various malicious purposes, including data theft and further malware deployment.
History
The history of BruteEntry is not well-documented, as it is a relatively obscure malware family. However, it is believed to have been first identified in the early 2010s. Over the years, BruteEntry has evolved to incorporate more sophisticated techniques, such as using botnets to distribute the brute-force workload across multiple systems, increasing its effectiveness and reducing the likelihood of detection.
Technical characteristics
BruteEntry is characterized by its use of brute-force techniques to gain unauthorized access. It typically targets systems with weak or default credentials, exploiting common password vulnerabilities. The malware often uses a dictionary attack, which involves trying a list of commonly used passwords. BruteEntry may also employ more advanced techniques, such as using a botnet to distribute the attack across multiple systems, making it more difficult to detect and mitigate.
Infection vector
BruteEntry primarily spreads through weak or default credentials on internet-facing systems. It often targets services such as Remote Desktop Protocol (RDP), Secure Shell (SSH), and other network services that require authentication. Once a system is compromised, BruteEntry can be used to deploy additional malware or to exfiltrate sensitive data.
Notable campaigns
There are no well-documented campaigns specifically attributed to BruteEntry. However, brute-force attacks in general have been used in numerous cybercriminal campaigns. These attacks often target organizations with weak password policies, exploiting vulnerabilities in password security to gain unauthorized access to sensitive systems.
Detection and mitigation
Detecting BruteEntry involves monitoring for signs of brute-force attacks, such as repeated failed login attempts. Network administrators can use intrusion detection systems (IDS) to identify suspicious activity. Mitigation strategies include enforcing strong password policies, implementing multi-factor authentication (MFA), and regularly updating and patching systems to address known vulnerabilities.
BruteEntry Attack Process
History of BruteEntry Malware
See also
- lateral movement