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Docs](https://docs.paloaltonetworks.com/search) Close search modal [Deploy Bravely --- Secure your AI transformation with Prisma AIRS](https://www.paloaltonetworks.com/deploybravely?ts=markdown) [](https://www.paloaltonetworks.com/?ts=markdown) # Major European corporation disrupts nation-state APT attack Upon discovering malware alerts, this client engaged Unit 42^®^ to investigate the multistage APT attack and restore critical operations. * [Download PDF](https://www.paloaltonetworks.com/content/dam/pan/en_US/images/customer-stories/major-european-corporation/major-european-corporation-disrupts-nation-state-apt-attack.pdf?ts=markdown) ResultsChallengeOutcomesGet in Touch [Results](#results) [Challenge](#challenge) [Outcomes](#outcomes) [Get in Touch](#summary) {#results} Results 2hours To identify and isolate affected servers 36hours To provide complete recovery plan and roadmap 7days From initial scoping to full recovery, including investigation {#challenge} ## The Client Large European transportation and logistics company ## The Challenge Initially, the organization saw malware alerts from two servers within the organization. The security team later learned that, by all indications, it was a nation-state APT mounting a multistage attack. The attacker exploited a vulnerable web application, deployed web shells, and stole sensitive data. Unit 42 was brought in to: * Provide a detailed understanding of the incident, including specific tools used. * Secure systems and provide remediation guidance. * Get business-critical functions operational fast. {#outcomes} ## Unit 42's Rigorous Incident Response Approach for Superior Outcomes ### Assess The client received alerts from its endpoint detection tool that malware was detected on two servers. The SOC isolated the servers and contacted Unit 42. ### Investigate Using [Cortex XDR](https://www.paloaltonetworks.com/cortex/cortex-xdr?ts=markdown), Unit 42 identified the web application vulnerability, web shell deployment, brute-force activity, internal reconnaissance, credential dumping, and data theft. ### Secure Unit 42's immediate findings on web shells, attacker-created user accounts, and C2 infrastructure enabled the client to contain the threat actor. ### Recover Restored business critical operations in 7 days, eliminated persistence mechanisms, and reduced the likelihood of a recurrence. ### Transform Provided hardening recommendations for future security posture transformation, giving the client actionable steps to close gaps. "Following Unit 42's actions, our environment is now stable, secure, and under close monitoring. We're beyond grateful for the quick support, collaboration, and detailed guidance throughout this engagement and recovery process." \-- Head of InfoSec First trigger point ### Assess ### Investigate ### Secure ### Recover ### Transform Scroll right ### Resolution Timeline ### Assess ### Investigate ### Secure ### Recover ### Transform Days 0 -- 1 Crisis Intervention Client detected malware alerts and engaged Unit 42 to assess the initial situation and plan the investigation. Determined on scoping call that the threat actor exploited a web application vulnerability and deployed numerous web shells in the environment. Client isolated affected servers, preventing any immediate further compromise. Days 2 -- 6 Containment Determined IoCs, use of privilege escalation tools, and network scanning activities. Identified use of LOTL tools, brute-force attack on employee account, credential dumping, and data exfiltration. Tracked data exfiltration, persistence mechanisms, and correlated activities with a known TA. Day 7 Restoration Completed remediation steps for an exposed port, and then took actions to remove web shells and the newly created user account. Restored business-critical operations in 7 days. Began providing hardening recommendations. Last trigger point {#summary} [![icon paloaltonetworks](https://www.paloaltonetworks.com/content/dam/pan/en_US/images/ir-unit42-2024/panw_white_logo.svg)paloaltonetworks](https://www.paloaltonetworks.com/?ts=markdown)[![icon paloaltonetworks unit42](https://www.paloaltonetworks.com/content/dam/pan/en_US/images/ir-unit42-2024/unit42_white.svg)paloaltonetworks unit42](https://www.paloaltonetworks.com/unit42?ts=markdown) ## Threat-informed Incident Response With [Unit 42 Incident Response](https://www.paloaltonetworks.com/unit42/respond/incident-response?ts=markdown), stay ahead of threats and out of the news. Investigate, contain, and recover from incidents faster and emerge stronger than ever before, backed by the full power of the world's leading cybersecurity company. Contact us to gain peace of mind. 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