Rewterz Threat Alert – A New SolarMarker Infostealer – Active IOCs

Severity

High

Analysis Summary

SolarMarker, also known as Jupyter or Yellow Cockatoo, is a sophisticated and concerning infostealer malware that emerged in early 2021. It spreads through phishing emails containing malicious attachments or links, and once installed on a system, it collects sensitive information and transmits it to attackers. SolarMarker’s primary objective is to steal login credentials, personal data, and financial information from its victims.

The malware employs various techniques to achieve its goals, including keylogging, form grabbing, and screen capturing. By capturing keystrokes and monitoring web browsing activities, SolarMarker gains access to sensitive data entered by users. It also utilizes obfuscation and anti-analysis techniques to evade detection by security tools.

One notable feature of SolarMarker is its ability to propagate within a network, potentially compromising multiple devices and entire infrastructures. This poses a significant threat to businesses and enterprises.

To protect against SolarMarker and similar threats, it is crucial to implement robust cybersecurity measures. These include keeping software and systems up to date, using strong and unique passwords, deploying reliable anti-malware solutions, and providing user education on phishing and online safety practices.

Impact

• Sensitive Information Theft
• Credential Theft

Indicators of Compromise

IP

146.70.157.224

MD5

• eff4dee32ca0f188b0f6ebe24799a489

SHA-256

• 278ec8f7a0cd969ebb84e72f60f19bb6f6fd6f7268ebe68245c46e6de2a43cf1

SHA-1

• d3980fba6bf04a63567954fa7ce8b645fc20367c

Remediation

• Block all threat indicators at your respective controls.
• Search for Indicators of compromise (IOCs) in your environment utilizing your respective security controls
• Emails from unknown senders should always be treated with caution.
• Never trust or open links and attachments received from unknown sources/senders.
• Enable antivirus and anti-malware software and update signature definitions in a timely manner. Using multi-layered protection is necessary to secure vulnerable assets
• Patch and upgrade any platforms and software timely and make it into a standard security policy. Prioritize patching known exploited vulnerabilities and zero-days.