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We developed a cloud-based machine learning system that, when queried by a device, intelligently predicts if it is at risk, then automatically issues a more aggressive blocking verdict to protect the device, thwarting an attacker’s next steps.
The post AI-driven adaptive protection against human-operated ransomware appeared first on Microsoft Security Blog. READ MORE HERE…
HTML smuggling, a highly evasive malware delivery technique that leverages legitimate HTML5 and JavaScript features, is increasingly used in email campaigns that deploy banking malware, remote access Trojans (RATs), and other payloads related to targeted attacks.
The post HTML smuggling surges: Highly evasive loader technique increasingly used in banking malware, targeted attacks appeared first on Microsoft Security Blog. READ MORE HERE…
Microsoft has detected exploits being used to compromise systems running the ZOHO ManageEngine ADSelfService Plus software versions vulnerable to CVE-2021-40539 in a targeted campaign. Microsoft Threat Intelligence Center (MSTIC) attributes this campaign with high confidence to DEV-0322.
The post Threat actor DEV-0322 exploiting ZOHO ManageEngine ADSelfService Plus appeared first on Microsoft Security Blog. READ MORE HERE…
Microsoft found a vulnerability (CVE-2021-30892) that could allow an attacker to bypass System Integrity Protection (SIP) in macOS. We shared our findings with Apple via coordinated vulnerability disclosure, and a fix was released October 26.
The post Microsoft finds new macOS vulnerability, Shrootless, that could bypass System Integrity Protection appeared first on Microsoft Security Blog. READ MORE HERE…
A phishing kit built using pieces of code copied from other kits, some available for sale through publicly accessible scam sellers or are reused and repackaged by other kit resellers, provides rich insight into the state of the economy that drives phishing and email threats today.
The post Franken-phish: TodayZoo built from other phishing kits appeared first on Microsoft Security Blog. READ MORE HERE…
MSTIC has observed DEV-0343 conducting extensive password spraying against more than 250 Office 365 tenants, with a focus on United States and Israeli defense technology companies, Persian Gulf ports of entry, or global maritime transportation companies with business presence in the Middle East.
The post Iran-linked DEV-0343 targeting defense, GIS, and maritime sectors appeared first on Microsoft Security Blog. READ MORE HERE…
In-depth analysis of newly detected NOBELIUM malware: a post-exploitation backdoor that Microsoft Threat Intelligence Center (MSTIC) refers to as FoggyWeb. NOBELIUM uses FoggyWeb to remotely exfiltrate the configuration database of compromised AD FS servers, decrypted token-signing certificate, and token-decryption certificate, as well as to download and execute additional components.
The post FoggyWeb: Targeted NOBELIUM malware leads to persistent backdoor appeared first on Microsoft Security Blog. READ MORE HERE…
With over 100 available phishing templates that mimic known brands and services, the BulletProofLink operation is responsible for many of the phishing campaigns that impact enterprises today. We are sharing these findings so the broader community can build on them and use them to enhance email filtering rules as well as threat detection technologies like sandboxes to better catch these threats.
The post Catching the big fish: Analyzing a large-scale phishing-as-a-service operation appeared first on Microsoft Security Blog. READ MORE HERE…
This blog details our in-depth analysis of the attacks that used the CVE-2021-40444, provides detection details and investigation guidance for Microsoft 365 Defender customers, and lists mitigation steps for hardening networks against this and similar attacks.
The post Analyzing attacks that exploit the CVE-2021-40444 MSHTML vulnerability appeared first on Microsoft Security Blog. READ MORE HERE…
We’re sharing technical information about the vulnerability tracked as CVE-2021-35211, which was used to attack the SolarWinds Serv-U FTP software in limited and targeted attacks.
The post A deep-dive into the SolarWinds Serv-U SSH vulnerability appeared first on Microsoft Security Blog. READ MORE HERE…