Category Archives: Tools

Analyzing & Detecting IIS Backdoors

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IIS Extensions As Backdoors Microsoft recently published an interesting blog explaining how they’ve noticed a new trend where attackers have been leveraging Internet Information Services (IIS) extensions to covertly backdoor Windows servers: https://www.microsoft.com/security/blog/2022/07/26/malicious-iis-extensions-quietly-open-persistent-backdoors-into-servers/ The Microsoft post contains a wealth of Continue reading →

PowerShell Script – VMware vCenter CVE-2021-21972 Scan Tool

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In this post, I am releasing a PowerShell POC script that will scan the specified target hosts and attempt to detect those that are vulnerable to VMware vCenter CVE-2021-21972. You can find the script, Invoke-CVE-2021-21972-Scan.ps1, on my github here: https://github.com/robwillisinfo/VMware_vCenter_CVE-2021-21972 Continue reading →

Invoke-Decoder – A PowerShell script to decode/deobfuscate malware samples

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I have been spending a lot of time reviewing PowerShell based attacks and malware over the last few months and I wanted to take some time to really understand how some of the common obfuscation techniques really work under the Continue reading →

Everything You Need To Know To Get Started Logging PowerShell

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Intro Recently, I have been spending a lot of time researching and working with PowerShell logging. Since PowerShell is readily available (built-in to the OS) and has an assortment of functionality that can be used across the entire kill chain Continue reading →

Installing ELK 7 (Elasticsearch, Logstash and Kibana) – Windows Server 2016 (Part I)

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I am a huge fan of the Elastic stack as it can provide a great deal of visibility into even the largest of environments, which can help enable both engineering and security teams rapidly triage technical issues or incidents at Continue reading →

PowerEdge R610 – Updating Firmwares When the LifeCycle Controller Fails

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Why You Should Always Update Firmwares! Security patches, new features and bug fixes – These are all very good reasons to ensure firmwares are up to date before moving your new servers into production. Things like the BIOS, RAID Controller, Continue reading →