{"uuid": "3ee1b419-4207-470a-8bd3-e59c43e38b0f", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-31207", "type": "seen", "source": "https://t.me/hacking_Attack/82154", "content": "Black Hat Ethical Hacking\nHackers Using Automated Attack to Exploit Exchange Server and SQL Injection Vulnerabilities\n\nHackers Using Automated Attack to Exploit Exchange Server and SQL Injection VulnerabilitiesPost Views: 1 Premium Contenthttps://www.blackhatethicalhacking.com/wp-content/uploads/2022/12/Patreon.png Subscribe to Patreon to watch this episode.\nReading Time: 3 Minutes Cybersecurity analysts at Prodraft\u2019s threat intelligence team detected\u00a0that the hacker group FIN7 was actively exploiting vulnerabilities in Microsoft Exchange and SQL injection through an automated attack system in an attempt to perform the following illicit activities:* Infiltrate corporate networks in order to steal information.\n* Data theft.\n* Adaptive ransomware attacks based on the financial size of the networks.\n\nFor years now, this security organization has closely followed the operations of FIN7. There are a number of details revealed by Prodaft about FIN7\u2019s behind-the-scenes:-\n\n* The hierarchy at the internal level.\n* Affiliations with a variety of ransomware projects.\n* A new SSH backdoor system.\nSee Also: So you want to be a hacker? Complete Offensive Security and Ethical Hacking Course Attack Modes and Auto-attackingFIN7 is a Russian-speaking threat group that has been active at least since 2012, and its motivations seem to be financial. \n\nA number of attacks have been linked to this threat group including:-\n\n* Attacks on ATMs.\n* The use of teddy bears to conceal malware-carrying USB drives.\n* Hiring pentesters to analyze ransomware attacks by setting up a false cybersecurity firm.\n* \nhttps://lh6.googleusercontent.com/bxGOUHzyqt1-qg7Uq2jsUnRi1HV_TyXD8GskpkUj8FCiC0GcPWtjfi1GMoJ-uOXsAZfvxua6L2oUgzkvxxELVUGQ2UjGfe91LwMwV280f0XKIkkr4TtLr72lNqOC0B11-KSzNN_roFQhJ-iK1PsO5AxGzJHFdVXCeJJ3oYQIowsVpWt1QF7TR92MaYZJZw \n<figcaptionAttack Modes \nThere is a system for automatic attacks called Checkmarks that has been discovered by Prodaft. So, in this scenario Checkmarks works as a scanner that scans for vulnerabilities that could result in remote code execution or privilege elevation in Microsoft Exchange, including:-\n\n* CVE-2021-34473\n* CVE-2021-34523\n* CVE-2021-31207\n\nSince June 2021 it\u2019s actively using Checkmarks for finding the corporate networks\u2019 vulnerable endpoints and exploiting them by using PowerShell to drop web shells which enabled FIN7 to gain access to corporate networks.\nhttps://lh5.googleusercontent.com/uIhqkcqkv5Fd4OCX_BWdGS6STKMeUdYYmhw9uRj__fsVqBI7uAhuNZHgOhZhXV_2An9pGMP4hb5CddH9eIejslPtDCRRpadLboahh3o-3DL3d5Ai92zpEY4yKqlriuK9MNXxCCiMAjJXcYTq0qC3BrITuQAUajMTQETbMuX6a7hAcHpuKxHPYxoHZaosXw \nAs part of its attack, FIN7 used multiple exploits, including its own custom code and publicly available Proof Of Concepts, to gain access to the target networks.\n\nThere are some other vulnerabilities that can be exploited with the Checkmarks attack platform in addition to the MS Exchange flaws. There is also a SQL injection module that uses SQLMap to scan for potential vulnerabilities on a website that may be exploited.\n\nFollowing the scanning of over 1.8 million targets with FIN7\u2019s Checkmarks platform, 8,147 companies have already been infiltrated. Here the most interesting thing is that all these companies are mainly based in the United States. \nTrending: How to Exploit \u201cimproper error handling\u201d in Web Applications Trending: Digital Forensics Tool: Email Analyzer Communications With the C&C ServerApart from this, from the retrieved Jabber logs, the security analysts also found extensive evidence that multiple ransomware groups were in communication with FIN7, including:-\n\n* Darkside\n* REvil\n* LockBit\n\nThere is one particular det[...]", "creation_timestamp": "2026-09-02T01:01:29.133671Z"}