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Managed Security Services
Managed Penetration Testing
Rewterz penetration testing services help organizations determine if a cyber attacker can gain access to their critical assets while giving them detailed insights of the overall business impact of a cyber attack.
Resources
May 30, 2023
Severity High Analysis Summary Recently, researchers discovered an advanced phishing method called “file archiver in the browser” that exploits .ZIP domains to deceive unsuspecting individuals. This […]May 28, 2023Severity High Analysis Summary An email protection and network security services provider has issued a warning regarding a zero-day vulnerability that has been exploited to compromise […]May 26, 2023Severity High Analysis Summary CVE-2023-32165 CVSS:9.8 D-Link D-View could allow a remote attacker to execute arbitrary code on the system, caused by a flaw in TftpReceiveFileHandler […]Threat Insights
Before Rewterz got its start, the market was in dire need of a specialized and dedicated information security company. It was nearly impossible for businesses to find a trustworthy provider that could truly cover all of their bases. We wanted to meet this need, giving companies across the globe a chance to get ahead while knowing that their data is in good hands.
Connect with Us
Platform
Managed Security Services
Managed Penetration Testing
Rewterz penetration testing services help organizations determine if a cyber attacker can gain access to their critical assets while giving them detailed insights of the overall business impact of a cyber attack.
Resources
May 30, 2023Severity High Analysis Summary Recently, researchers discovered an advanced phishing method called “file archiver in the browser” that exploits .ZIP domains to deceive unsuspecting individuals. This […]May 28, 2023Severity High Analysis Summary An email protection and network security services provider has issued a warning regarding a zero-day vulnerability that has been exploited to compromise […]May 26, 2023Severity High Analysis Summary CVE-2023-32165 CVSS:9.8 D-Link D-View could allow a remote attacker to execute arbitrary code on the system, caused by a flaw in TftpReceiveFileHandler […]Threat Insights
Before Rewterz got its start, the market was in dire need of a specialized and dedicated information security company. It was nearly impossible for businesses to find a trustworthy provider that could truly cover all of their bases. We wanted to meet this need, giving companies across the globe a chance to get ahead while knowing that their data is in good hands.
Connect with Us
Rewterz Threat Alert – Eight Exploits Used in BlackSquid Attacks
June 10, 2019Rewterz Threat Alert – Over 185,000 Payment Card Details Stolen by MageCart
June 10, 2019
Severity
Medium
Analysis Summary
A botnet named GoldBrute. It is currently attempting to brute-force credentials on Internet-accessible RDP servers. The number of servers the botnet is attempting to exploit is reportedly in the region of 1.5 million. If a server is successfully compromised, the server will then download and install the botnet code. The botnet is written in Java and the required Java runtime is part of the botnet code download. The infected server will communicate with the C&C server using an encrypted (AES) websocket on port 8333 and then scan random IP addresses to locate further systems with exposed RDP services. An interesting feature of the botnet is the manner in which it assigns servers to attempt to brute force with each bot trying only one username and password per target system.
Impact
Credential theft
Indicators of Compromise
IP(s) / Hostname(s)
- 104[.]248[.]167[.]144
- 104[.]156[.]249[.]231
Malware Hash (MD5/SHA1/SH256)
- af07d75d81c36d8e1ef2e1373b3a975b9791f0cca231b623de0b2acd869f264e
Remediation
- Ensure strong RDP passwords.
- Ensure RDP is not connected to the internet.