Cybersecurity and Infrastructure Security Agency (CISA) has updated its guidance to detail as many as seven variants of the China Chopper web shell that are being leveraged by malicious actors.ĭetect, Respond, Protect: ITDR and SSPM for Complete SaaS Securityĭiscover how Identity Threat Detection & Response (ITDR) identifies and mitigates threats with the help of SSPM.
The development comes in the wake of indiscriminate attacks against unpatched Exchange Servers across the world by more than ten advanced persistent threat actors - most of the government-backed cyberespionage groups - to plant backdoors, coin miners, and ransomware, with the release of proof-of-concept (PoC) fueling the hacking spree even further.īased on telemetry from RiskIQ, 317,269 out of 400,000 on-premises Exchange Servers globally have been patched as of March 12, with the U.S., Germany, Great Britain, France, and Italy leading the countries with vulnerable servers.Īdditionally, the U.S. "This new tool is designed as an interim mitigation for customers who are unfamiliar with the patch/update process or who have not yet applied the on-premises Exchange security update," Microsoft said.
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Microsoft on Monday released a one-click mitigation software that applies all the necessary countermeasures to secure vulnerable environments against the ongoing widespread ProxyLogon Exchange Server cyberattacks.Ĭalled Exchange On-premises Mitigation Tool ( EOMT), the PowerShell-based script serves to mitigate against current known attacks using CVE-2021-26855, scan the Exchange Server using the Microsoft Safety Scanner for any deployed web shells, and attempt to remediate the detected compromises.
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