{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata — refreshed continuously.","feed_url":"https://feed.craftedsignal.io/tags/remote-file-execution/","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cves":[],"_cs_exploited":false,"_cs_products":["Windows Installer"],"_cs_severities":["low"],"_cs_tags":["msiexec","remote-file-execution","initial-access","defense-evasion","windows"],"_cs_type":"advisory","_cs_vendors":["Microsoft","Citrix"],"content_html":"\u003cp\u003eThe Windows Installer (msiexec.exe) is a built-in Windows component used for installing, modifying, and removing software. Adversaries may abuse msiexec.exe to launch local or network accessible MSI files, bypassing security controls and potentially leading to initial access or defense evasion. This activity is often part of a broader attack chain, used to deliver and execute malicious payloads. The detection rule provided by Elastic identifies suspicious msiexec.exe activity by monitoring process starts, network connections, and child processes. It filters out known benign signatures and paths to highlight potential misuse. This detection is designed to work with Elastic Defend data.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAn attacker gains initial access via phishing (T1566) or other means to execute commands on the target system.\u003c/li\u003e\n\u003cli\u003eThe attacker uses msiexec.exe with the \u003ccode\u003e/V\u003c/code\u003e parameter to initiate the installation of a remote MSI package. This allows the attacker to bypass typical execution restrictions.\u003c/li\u003e\n\u003cli\u003eMsiexec.exe attempts a network connection (T1105) to retrieve the remote MSI package from a malicious server.\u003c/li\u003e\n\u003cli\u003eMsiexec.exe spawns a child process to handle the installation of the downloaded MSI package.\u003c/li\u003e\n\u003cli\u003eThe spawned child process executes malicious code embedded within the MSI package.\u003c/li\u003e\n\u003cli\u003eThe malicious code performs actions such as installing malware, modifying system settings, or establishing persistence.\u003c/li\u003e\n\u003cli\u003eThe attacker leverages the compromised system for further lateral movement or data exfiltration.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation can lead to the installation of malware, unauthorized access to sensitive data, and further compromise of the affected system and network. While this specific rule has a low risk score, it can be an early indicator of more serious attacks. It is crucial to investigate any alerts generated by this rule to determine the full scope and impact of the potential compromise.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDeploy the Sigma rule provided below to your SIEM to detect suspicious usage of \u003ccode\u003emsiexec.exe\u003c/code\u003e to install remote packages. Tune the rule for your environment by adding exceptions for legitimate software installation processes.\u003c/li\u003e\n\u003cli\u003eEnable process monitoring and network connection logging on Windows endpoints to provide the necessary data for the Sigma rule to function effectively (Data Source: Elastic Defend).\u003c/li\u003e\n\u003cli\u003eReview the \u0026ldquo;Possible investigation steps\u0026rdquo; section in the Elastic rule\u0026rsquo;s documentation to investigate potential false positives and legitimate uses of \u003ccode\u003emsiexec.exe\u003c/code\u003e.\u003c/li\u003e\n\u003cli\u003eImplement application control policies to restrict the execution of unauthorized applications, including potentially malicious MSI packages.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-05-04T14:17:05Z","date_published":"2026-05-04T14:17:05Z","id":"/briefs/2026-05-msiexec-remote-install/","summary":"The rule detects the execution of the built-in Windows Installer, msiexec.exe, to install a remote package potentially abused by adversaries for initial access and defense evasion.","title":"Potential Remote File Execution via MSIEXEC","url":"https://feed.craftedsignal.io/briefs/2026-05-msiexec-remote-install/"}],"language":"en","title":"CraftedSignal Threat Feed — Remote-File-Execution","version":"https://jsonfeed.org/version/1.1"}