Query: Encoded PowerShell / command-line abuse matching Compromise Infrastructure
Matching passage: T1584 Compromise Infrastructure. Tactics: resource development. Description: Adversaries may compromise third-party infrastructure that can be used during targeting. Infrastructure solutions include physical or cloud servers, domains, network devices, and third-party web and DNS services. Instead of buying, leasing, or renting infrastructure an adversary may compromise infrastructure and use it during other phases of the adversary lifecycle.(Citation: Mandiant APT1)(Citation: ICANNDomainNameHijacking)(Citation: Talos DNSpionage Nov 2018)(Citation: FireEye EPS Awakens Part 2) Additionally, adversaries may compromise numerous machines to form a botnet they can leverage. Use of compromised infrastructure allows adversaries to stage, launch, and execute operations. Compromised infrastructure can help adversary operations blend in with traffic that is seen as normal, such as contact with high reputation or trusted sites. For example, adversaries may leverage compromised infrastructure (potentially also in conjunction with [Digital Certificates](https://attack.mitre.org/techniques/T1588/004)) to further blend in and support staged information gathering and/or [Phishing](https://attack.mitre.org/techniques/T1566) campaigns.(Citation: FireEye DNS Hijack 2019) Adversaries may also compromise numerous machines to support [Proxy](https://attack.mitre.org/techniques/T1090) and/or proxyware services or to form a botnet.(Citation: amnesty_nso_pegasus)(Citation: Sysdig Proxyjacking) Additionally, adversaries may compromise infrastructure residing in close proximity to a target in order to gain [Initial Access](https://attack.mitre.org/tactics/TA0001) via [Wi-Fi Networks](https://attack.mitre.org/techniques/T1669).(Citation: Nearest Neighbor Volexity) By using compromised infrastructure, adversaries may enable follow-on malicious operations. Prior to targeting, adversaries may also compromise the infrastructure of other adversaries.(Citation: NSA NCSC Turla OilRig)
Near-miss passage: T1584.007 Serverless. Tactics: resource development. Description: Adversaries may compromise serverless cloud infrastructure, such as Cloudflare Workers, AWS Lambda functions, or Google Apps Scripts, that can be used during targeting. By utilizing serverless infrastructure, adversaries can make it more difficult to attribute infrastructure used during operations back to them. Once compromised, the serverless runtime environment can be leveraged to either respond directly to infected machines or to [Proxy](https://attack.mitre.org/techniques/T1090) traffic to an adversary-owned command and control server.(Citation: BlackWater Malware Cloudflare Workers)(Citation: AWS Lambda Redirector)(Citation: GWS Apps Script Abuse 2021) As traffic generated by these functions will appear to come from subdomains of common cloud providers, it may be difficult to distinguish from ordinary traffic to these providers - making it easier to [Hide Infrastructure](https://attack.mitre.org/techniques/T1665).(Citation: Detecting Command & Control in the Cloud)(Citation: BlackWater Malware Cloudflare Workers)