Network Security News Summary for Friday September 30th, 2022

PNG Analysis; Possible Exchange 0-Day; New VMWAre ESXi Persistence PNG Analysis with pngdump.py https://isc.sans.edu/forums/diary/PNG%20Analysis/29100/ Possible Exchange Server 0-Day Vulnerability https://www.gteltsc.vn/blog/warning-new-attack-campaign-utilized-a-new-0day-rce-vulnerability-on-microsoft-exchange-server-12715.html https://success.trendmicro.com/dcx/s/solution/000291651?language=en_US Bad VIB(E)s Part One: Investigating Novel Malware Persistence Within ESXi Hypervisors https://www.mandiant.com/resources/blog/esxi-hypervisors-malware-persistence keywords: VIB; vmware; vsphere; exchange server; 0-day; proxy logon; proxy shell; png; pngdump