{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","feed_url":"https://feed.craftedsignal.io/products/microsoft-management-console/feed.json","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cpes":[],"_cs_cves":[],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["Microsoft Management Console"],"_cs_severities":["medium"],"_cs_tags":["execution","defense-evasion","windows"],"_cs_type":"advisory","_cs_vendors":["Microsoft"],"content_html":"\u003cp\u003eThis detection identifies attempts to execute Microsoft Management Console (MMC) files (.msc) from non-standard directories on Windows systems. The Microsoft Management Console is a legitimate Windows utility, but adversaries may abuse it to execute malicious .msc files from locations outside the typical system directories to evade detection. This technique, often associated with initial access or execution phases, allows attackers to bypass application whitelisting or other security measures that rely on standard file paths. The detection logic focuses on monitoring process executions involving \u003ccode\u003emmc.exe\u003c/code\u003e with \u003ccode\u003e.msc\u003c/code\u003e files as arguments, specifically when these files are launched from paths outside the common system folders like \u003ccode\u003eC:\\Windows\\System32\u003c/code\u003e or \u003ccode\u003eC:\\Program Files\u003c/code\u003e.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAn attacker gains initial access to a system through a phishing email or other means.\u003c/li\u003e\n\u003cli\u003eThe attacker drops a malicious \u003ccode\u003e.msc\u003c/code\u003e file in a non-standard directory (e.g., \u003ccode\u003eC:\\Users\\Public\\\u003c/code\u003e).\u003c/li\u003e\n\u003cli\u003eA user, possibly tricked by social engineering, executes \u003ccode\u003emmc.exe\u003c/code\u003e with the malicious \u003ccode\u003e.msc\u003c/code\u003e file as an argument.\u003c/li\u003e\n\u003cli\u003e\u003ccode\u003emmc.exe\u003c/code\u003e parses and executes the embedded code within the \u003ccode\u003e.msc\u003c/code\u003e file.\u003c/li\u003e\n\u003cli\u003eThe malicious code performs actions such as downloading and executing a payload or modifying system settings.\u003c/li\u003e\n\u003cli\u003eThe payload establishes persistence through registry keys or scheduled tasks.\u003c/li\u003e\n\u003cli\u003eThe attacker gains remote access to the compromised system.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation leads to arbitrary code execution on the targeted system. The attacker can then perform various malicious activities, including data theft, lateral movement, or deployment of ransomware. Due to the legitimate nature of \u003ccode\u003emmc.exe\u003c/code\u003e, this technique can bypass many traditional security controls, making it difficult to detect and prevent. The impact ranges from single workstation compromise to broader network infiltration depending on the attacker's objectives and the scope of the malicious \u003ccode\u003e.msc\u003c/code\u003e file's payload.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eImplement the provided Sigma rule to detect \u003ccode\u003emmc.exe\u003c/code\u003e execution with \u003ccode\u003e.msc\u003c/code\u003e files from unusual paths and tune the rule based on your environment.\u003c/li\u003e\n\u003cli\u003eEnable Sysmon process creation logging to capture the necessary process execution details to activate the Sigma rule.\u003c/li\u003e\n\u003cli\u003eMonitor process execution logs for instances of \u003ccode\u003emmc.exe\u003c/code\u003e being launched with \u003ccode\u003e.msc\u003c/code\u003e files as arguments.\u003c/li\u003e\n\u003cli\u003eInvestigate any alerts generated by the Sigma rule, prioritizing those associated with unusual user activity or high-risk systems.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2024-11-02T12:00:00Z","date_published":"2024-11-02T12:00:00Z","id":"https://feed.craftedsignal.io/briefs/2024-11-mmc-unusual-path/","summary":"This rule identifies the execution of Microsoft Management Console (MMC) files from unusual paths, a technique adversaries may use to bypass security controls and execute malicious code.","title":"Microsoft Management Console File Execution from Unusual Path","url":"https://feed.craftedsignal.io/briefs/2024-11-mmc-unusual-path/"},{"_cs_actors":[],"_cs_cpes":[],"_cs_cves":[],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["Microsoft Management Console"],"_cs_severities":["high"],"_cs_tags":["execution","initial-access","defense-evasion","windows"],"_cs_type":"advisory","_cs_vendors":["Microsoft"],"content_html":"\u003cp\u003eAttackers can embed malicious commands within Microsoft Common Console (MSC) files, which, when opened by a user, execute these commands. This technique is used to bypass traditional security measures and execute arbitrary code under the guise of a legitimate system process. The execution originates from \u003ccode\u003emmc.exe\u003c/code\u003e, a signed Microsoft binary, making detection more challenging. While the specific campaigns leveraging this technique are not detailed in the source, the tactic is well-documented and can be used in conjunction with phishing or social engineering attacks to deliver the malicious MSC file. Successful exploitation can lead to initial access, code execution, and further compromise of the system. This approach is particularly effective against users who are not trained to recognize the risks associated with opening MSC files from untrusted sources.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAn attacker crafts a malicious MSC file containing an embedded command or script.\u003c/li\u003e\n\u003cli\u003eThe MSC file is delivered to the victim via phishing, drive-by download, or other means.\u003c/li\u003e\n\u003cli\u003eThe victim opens the MSC file, which launches \u003ccode\u003emmc.exe\u003c/code\u003e (Microsoft Management Console).\u003c/li\u003e\n\u003cli\u003e\u003ccode\u003emmc.exe\u003c/code\u003e executes the embedded malicious command or script.\u003c/li\u003e\n\u003cli\u003eThe malicious script may download and execute additional payloads (e.g., malware, backdoors).\u003c/li\u003e\n\u003cli\u003eThe attacker gains initial access and establishes persistence on the compromised system.\u003c/li\u003e\n\u003cli\u003eThe attacker performs lateral movement to other systems within the network.\u003c/li\u003e\n\u003cli\u003eThe attacker exfiltrates sensitive data or deploys ransomware.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eA successful attack can lead to a full system compromise, including data theft, ransomware deployment, and disruption of services. The number of victims and specific sectors targeted are not available from the source, but the impact on individual organizations can be severe. If successful, this attack can bypass application control policies and traditional AV solutions, resulting in significant data loss and financial damage.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eEnable Sysmon process creation logging to monitor for unusual child processes spawned by \u003ccode\u003emmc.exe\u003c/code\u003e to activate the rule below.\u003c/li\u003e\n\u003cli\u003eDeploy the Sigma rules in this brief to your SIEM and tune for your environment to detect malicious MSC file execution.\u003c/li\u003e\n\u003cli\u003eEducate users about the risks of opening MSC files from untrusted sources to prevent initial access.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2024-07-03T14:27:00Z","date_published":"2024-07-03T14:27:00Z","id":"https://feed.craftedsignal.io/briefs/2024-07-msc-execution/","summary":"Adversaries may embed a malicious command in an MSC file to trick victims into executing malicious commands, leading to potential initial access, execution of malicious code, and defense evasion.","title":"Unusual Execution via Microsoft Common Console File","url":"https://feed.craftedsignal.io/briefs/2024-07-msc-execution/"}],"language":"en","title":"CraftedSignal Threat Feed - Microsoft Management Console","version":"https://jsonfeed.org/version/1.1"}