Rewterz Threat Advisory – CVE-2021-39006 – IBM QRadar WinCollect Agent Vulnerability
June 22, 2022Rewterz Threat Alert – Donot APT Group – Active IOCs
June 22, 2022Rewterz Threat Advisory – CVE-2021-39006 – IBM QRadar WinCollect Agent Vulnerability
June 22, 2022Rewterz Threat Alert – Donot APT Group – Active IOCs
June 22, 2022Severity
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
- 9a3318281cfa70cd369700d78bd840c5
- 8db06db3366d01649ad9cb8394bb2c3d
- f8e7dca2393a2d5a345603b8c0e94e74
SHA-256
- b40edd2ee87ad577b6e077be94ed1bf4a716103c6ac743ce12e067a4fa926b80
- 00d72c44db13083301639d910551e55241ee3d11ec93bd4178651bd78ef54c33
- b62cc33b41d9b1f582da66bd26d943d0ac9ab97dbd733dce3a1df9e1d82f1ea8
SHA-1
- 0cd64ea80112bf703c576d1e7337f3ce77965561
- 7c9ead39aa6b1bd0557ae9ce65f1b398cc6abb9a
- 23097582b4acc4461e9dc38ed3e1a284daf85052
Remediation
- Block all threat indicators at your respective controls.
- Search for IOCs in your environment.