Operation Exchange Marauder: Active Exploitation of Multiple Zero-Day Microsoft Exchange Vulnerabilities
Por um escritor misterioso
Last updated 31 julho 2024
![Operation Exchange Marauder: Active Exploitation of Multiple Zero-Day Microsoft Exchange Vulnerabilities](https://www.volexity.com/wp-content/uploads/2021/03/MS-Exchange-graphic-banner.png)
[UPDATE] March 8, 2021 – Since original publication of this blog, Volexity has now observed that cyber espionage operations using the SSRF vulnerability CVE-2021-26855 started occurring on January 3, 2021, three days earlier than initially posted. Volexity is seeing active in-the-wild exploitation of multiple Microsoft Exchange vulnerabilities used to steal e-mail and compromise networks. These attacks appear to have started as early as January 6, 2021. In January 2021, through its Network Security Monitoring service, Volexity detected anomalous activity from two of its customers' Microsoft Exchange servers. Volexity identified a large amount of data being sent to IP addresses it believed were not tied to legitimate users. A closer inspection of the IIS logs from the Exchange servers revealed rather alarming results. The logs showed inbound POST requests to valid files associated with images, JavaScript, cascading style sheets, and fonts used by Outlook Web Access (OWA). It was initially suspected the […]
![Operation Exchange Marauder: Active Exploitation of Multiple Zero-Day Microsoft Exchange Vulnerabilities](https://www.virsec.com/hubfs/Virsec-Blog-ProxyNotShell-AttackFlow%20Figure%203.jpg)
ProxyNotShell: A Zero-Day Microsoft Exchange Exploit
![Operation Exchange Marauder: Active Exploitation of Multiple Zero-Day Microsoft Exchange Vulnerabilities](https://www.splunk.com/content/dam/splunk-blogs/images/en_us/2021/02/Shodan-Exchange-Servers.png)
Detecting Microsoft Exchange Vulnerabilities - 0 + 8 Days Later…
![Operation Exchange Marauder: Active Exploitation of Multiple Zero-Day Microsoft Exchange Vulnerabilities](https://cdn.pathfactory.com/assets/10906/contents/538263/thumbnails/600x/Flash%2520Notice%25207-Aug-31-2023-02-44-28-3481-PM.png)
Flash Notice: Zero-Day Vulnerability in Libwebp - Exploited in the Wild
![Operation Exchange Marauder: Active Exploitation of Multiple Zero-Day Microsoft Exchange Vulnerabilities](https://www.microsoft.com/en-us/security/blog//wp-content/uploads/2021/03/fig3-xx-bat-actions.png)
Analyzing attacks taking advantage of the Exchange Server vulnerabilities
![Operation Exchange Marauder: Active Exploitation of Multiple Zero-Day Microsoft Exchange Vulnerabilities](https://web-assets.esetstatic.com/wls/2021/03/microsoft-exchange-servers-under-siege-10-apt-groups.jpg)
Exchange servers under siege from at least 10 APT groups
![Operation Exchange Marauder: Active Exploitation of Multiple Zero-Day Microsoft Exchange Vulnerabilities](https://redcanary.com/wp-content/uploads/2021/03/image6.png)
Microsoft Exchange exploitation: how to detect, mitigate, and stay calm
![Operation Exchange Marauder: Active Exploitation of Multiple Zero-Day Microsoft Exchange Vulnerabilities](https://www.domaintools.com/wp-content/uploads/examining-exchange-exploitation-and-its-lessons-for-defenders-hero-scaled.jpg)
Examining Exchange Exploitation and its Lessons for Defenders - DomainTools
![Operation Exchange Marauder: Active Exploitation of Multiple Zero-Day Microsoft Exchange Vulnerabilities](https://global.discourse-cdn.com/elastic/original/3X/8/6/8646a24870c67e4f845f353b1fbe06b17614371b.png)
Detection and Response for HAFNIUM Activity - Elastic Security - Discuss the Elastic Stack
![Operation Exchange Marauder: Active Exploitation of Multiple Zero-Day Microsoft Exchange Vulnerabilities](https://www.volexity.com/wp-content/uploads/2021/03/MS-Exchange-graphic-banner.png)
Operation Exchange Marauder: Active Exploitation of Multiple Zero-Day Microsoft Exchange Vulnerabilities
![Operation Exchange Marauder: Active Exploitation of Multiple Zero-Day Microsoft Exchange Vulnerabilities](https://www.lansweeper.com/wp-content/uploads/2021/03/Microsoft-Exchange-Server-Vulnerability.png.webp)
Four Exchange Server Vulnerabilities Patched - Audit Now!
![Operation Exchange Marauder: Active Exploitation of Multiple Zero-Day Microsoft Exchange Vulnerabilities](https://thecyberwire.com/images/social-media/2021/03/cw-briefing-030321.jpg)
India continues investigation of possible grid cybersabotage. Microsoft patches zero-days under active Chinese exploitation. Ursnif warnings. ICS advisories.
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