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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 – RedLine Stealer – Active IOCs
January 24, 2022Rewterz Threat Alert – BluStealer Infostealer – Active IOCs
January 24, 2022
Severity
Medium
Analysis Summary
NjRat is a Remote Access Trojan, which is found leveraging Pastebin to deliver a second-stage payload after initial infection. There are multiple versions of the secondary payload used, ranging from base64 encoded version, hexadecimal, JSON data format, compressed blobs, and also plain text data with malicious URLs embedded within. This is done in order to evade detection by security products and increase the possibility of operating unnoticed. njRat is developed in .NET framework and is able to hijack the functions of a compromised machine remotely, including taking screenshots, exfiltrating data, keylogging, and killing processes such as antivirus programs, while also connecting the machine to a botnet. RAT was also found abusing Windows API functions such as Windows API calls such as GetKeyboardState(), GetAsynckeyState(), MapVirtualKey() for keylogging, and data theft. It was also discovered downloading web scraping tools such as “proxy scrapper” in order to extract large amounts of data via proxies
Impact
- Unauthorized Access
Indicators of Compromise
MD5
- c64049c3adebb2d82e2f1da49c24b48b
- a6c258af41ba4806e49fb1acff81567a
- 29bf474d20e0b17a36577c6e903e8afb
- aecee89ac383e028e843f29aebbb191d
- af75bf198fdc4a21ce1758f5843b1036
- a525852c019588983cd5dfaf14ad6adb
SHA-256
- 54ce549c87b539c11fee900cee2bc6ffd4c9b4c7c96fcaec2c7623b0bab80a74
- 75ab761cc1439789376140b0ce2baf9fd7f6090a4a177cfcffd6fae11ec93071
- 9ba526eaa176389b20e270129a403934a9625fdee27f1ad36ed20289f178421c
- fc4fc64aa60cab72de617368e5dfdd772f99f7b2881947193e36f0adc169776a
- 50b8b19e4501f07b8bb5cff4640776abddc175a8bf352eebdfef908c2b456e30
- bfeffd6642e3138ba6728ebda1c241d052c9add4f4b4a6a108104bc46656180a
SHA-1
- 4d7ef58b75ab69389d441a192cbeb8ec5165c1b5
- 8264f99a54cf67957decd9346bb6e0d3cc91af1e
- 11cf027edff4d91c634b23972c612a9998b7173f
- fb228c1a12415c6f301a76774c28ac602dafde44
- 673eb926d11c448cc2a2af4907544068e6c28e25
- 3f42d19e1a1cca9ed6dfb5146e70bd3713d23bc4
Remediation
- Block all threat indicators at your respective controls.
- Search for IOCs in your environment.