Leveraging INF-SCT Fetch & Execute Techniques For Bypass, Evasion, & Persistence (Part 2)
Two weeks ago, I blogged about several “pass-thru” techniques that leveraged the use of INF files (‘.inf’) to “fetch and execute” remote script component files (‘.sct’). In general, instances of these methods could potentially be abused to bypass application whitelisting (AWL) policies (e.g. Default AppLocker policies), deter host-based security products, and achieve ‘hidden’ persistence. Additionally, a few other “fetch and execute” techniques were highlighted for situational awareness, and several defensive considerations were presented. If you have not already done so, I’d highly recommend reviewing Part 1 [Leveraging INF-SCT Fetch & Execute Techniques For Bypass, Evasion, & Persistence] before proceeding as we will revisit a few prior topics before presenting these INF-SCT methods: InfDefaultInstall IExpress IEadvpack.dll (LaunchINFSection) IE4uinit Revisiting Setupapi.dll (InstallHinfSection) and Advpack.dll (LaunchINFSection) Setupapi.dll (InstallHinfSection) – InfDefaultInstall.exe In their DerbyCon 2017 talk – Evading AutoRuns, @KyleHanslovan and @ChrisBisnett of @HuntressLabs presented several INF-SCT techniques
FEATURES
SIMILAR TOOLS
Valkyrie is a sophisticated file verdict system that enhances malware detection through behavioral analysis and extensive file feature examination.
Falcon Sandbox is a malware analysis framework that provides in-depth static and dynamic analysis of files, offering hybrid analysis, behavior indicators, and integrations with various security tools.
Joe Sandbox Community provides automated cloud-based malware analysis across multiple OS platforms.
PinCTF is a tool for using Intel's Pin Tool to instrument reverse engineering binaries and count instructions.
A collaborative malware analysis framework with various features for automated analysis tasks.
Intezer is a cloud-based malware analysis platform that detects and classifies malware using genetic code analysis.
A tool designed to handle archive file data and augment Yara's capabilities.
PINNED

Checkmarx SCA
A software composition analysis tool that identifies vulnerabilities, malicious code, and license risks in open source dependencies throughout the software development lifecycle.

Orca Security
A cloud-native application protection platform that provides agentless security monitoring, vulnerability management, and compliance capabilities across multi-cloud environments.

DryRun
A GitHub application that performs automated security code reviews by analyzing contextual security aspects of code changes during pull requests.