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Incident Response Techniques for Ransomware Attacks

Name: Incident Response Techniques for Ransomware Attacks
Author: Oleg Skulkin
ISBN: 9781803240442

by Oleg Skulkin

April 2022

Beginner to intermediate

228 pages

4h 34m

English

Packt Publishing

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Incident Response Techniques for Ransomware Attacks
ContributorsAbout the authorAbout the reviewer
Preface
Who this book is forWhat this book coversDownload the color imagesConventions usedGet in touchDisclaimerShare Your Thoughts
Section 1: Getting Started with a Modern Ransomware Attack
Chapter 1: The History of Human-Operated Ransomware Attacks
2016 – SamSam ransomwareWho was behind the SamSam ransomware2017 – BitPaymer ransomwareThe mastermind behind the BitPaymer ransomware2018 – Ryuk ransomwareWho was behind the Ryuk ransomware?2019-present – ransomware-as-a-serviceWho was behind ransomware-as-a-service programs?Summary
Chapter 2: The Life Cycle of a Human-Operated Ransomware Attack
Initial attack vectorsRDP compromiseSpear phishingSoftware vulnerabilitiesPost-exploitationData exfiltrationRansomware deploymentSummary
Chapter 3: The Incident Response Process
Preparation for an incidentThe teamThe infrastructureThreat detection and analysisContainment, eradication, and recoveryPost-incident activitySummary
Section 2: Know Your Adversary: How Ransomware Gangs Operate
Chapter 4: Cyber Threat Intelligence and Ransomware
Strategic cyber threat intelligenceOperational cyber threat intelligenceTactical cyber threat intelligenceSummary
Chapter 5: Understanding Ransomware Affiliates' Tactics, Techniques, and Procedures
Gaining initial accessExternal remote services (T1133)Exploiting public-facing applications (T1190)Phishing (T1566)Supply chain compromise (T1195)Executing malicious codeUser execution (T1204)Command and scripting interpreters (T1059)Exploitation for client execution (T1203)Windows Management Instrumentation (T1047)Obtaining persistent accessValid accounts (T1078)Create account (T1136)Boot or logon autostart execution (T1547)Scheduled task/job (T1053)Server software component (T1505)Escalating privilegesExploiting for privilege escalation (T1068)Creating or modifying system process (T1543)Process injection (T1055)Abuse elevation control mechanism (T1548)Bypassing defensesExploiting for defense evasion (T1211)Deobfuscating/decoding files or information (T1140)File and directory permissions modification (T1222)Impairing defenses (T1562)Indicator removal on host (T1070)Signed binary proxy execution (T1218)Accessing credentialsBrute force (T1110)OS credential dumping (T1003)Steal or forge Kerberos tickets (T1558)Moving laterallyExploiting remote services (T1210)Remote services (T1021)Using alternate authentication material (T1550)Collecting and exfiltrating dataData from local system (T1005)Data from network shared drives (T1039)Email collection (T1114)Archive collected data (T1560)Exfiltration over web service (T1567)Automated exfiltration (T1020)Ransomware deploymentInhibit system recovery (T1490)Data encrypted for impact (T1490)Summary
Chapter 6: Collecting Ransomware-Related Cyber Threat Intelligence
Threat research reportsCommunityThreat actorsSummary

Section 3: Practical Incident Response
Chapter 7: Digital Forensic Artifacts and Their Main Sources
Volatile memory collection and analysisNon-volatile data collectionMaster file tablePrefetch filesLNK filesJump listsSRUMWeb browsersWindows RegistryWindows event logsOther log sourcesSummary
Chapter 8: Investigating Initial Access Techniques
Collecting data sources for an external remote service abuse investigationInvestigating an RDP brute-force attackCollecting data sources for a phishing attack investigationInvestigating a phishing attackSummary
Chapter 9: Investigating Post-Exploitation Techniques
Investigating credential access techniquesCredential dumping with hacking toolsCredential dumping with built-in toolsKerberoastingInvestigating reconnaissance techniquesNetwork scanningActive Directory reconnaissanceInvestigating lateral movement techniquesAdministrative sharesPsExecRDPSummary
Chapter 10: Investigating Data Exfiltration Techniques
Investigating web browser abuse for data exfiltrationInvestigating cloud service client application abuse for data exfiltrationInvestigating third-party cloud synchronization tool abuse for data exfiltration Investigating the use of custom data exfiltration toolsSummary
Chapter 11: Investigating Ransomware Deployment Techniques
Investigation of abusing RDP for ransomware deploymentCrylock ransomware overviewInvestigation of Administrative shares for ransomware deploymentREvil ransomware overviewInvestigation of Group Policy for ransomware deploymentLockBit ransomware overviewSummary
Chapter 12: The Unified Ransomware Kill Chain
Cyber Kill Chain®ReconnaissanceWeaponizationDeliveryExploitationInstallationCommand and Control (C2)Actions on ObjectivesMITRE ATT&CK®ReconnaissanceResource developmentInitial accessExecutionPersistencePrivilege escalationDefense evasionCredential accessDiscoveryLateral movementCollectionCommand and controlExfiltrationImpactThe Unified Kill ChainInitial FootholdNetwork PropagationActions on ObjectivesThe Unified Ransomware Kill ChainGain Access to the NetworkEstablish FootholdNetwork DiscoveryKey Assets DiscoveryNetwork PropagationData ExfiltrationDeployment PreparationRansomware DeploymentExtortionSummary
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Content preview from Incident Response Techniques for Ransomware Attacks

Section 3: Practical Incident Response

This part will provide you with lots of practical examples related to the investigation of modern human-operated ransomware attacks and introduce you to the Unified Ransomware Kill Chain.

This section comprises the following chapters:

Chapter 7, Digital Forensic Artifacts and Their Main Sources
Chapter 8, Investigating Initial Access Techniques
Chapter 9, Investigating Post-Exploitation Techniques
Chapter 10, Investigating Data Exfiltration Techniques
Chapter 11, Investigating Ransomware Deployment Techniques
Chapter 12, The Unified Ransomware Kill Chain

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Ransomware Revealed: A Beginner’s Guide to Protecting and Recovering from Ransomware Attacks

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Incident Response Techniques for Ransomware Attacks

by Oleg Skulkin

Section 3: Practical Incident Response

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