[metadata] creation_date = "2020/03/18" ecs_version = ["1.4.0"] maturity = "production" updated_date = "2020/03/18" [rule] author = ["Elastic"] description = """ Identifies msxsl.exe making a network connection. This may indicate adversarial activity as msxsl.exe is often leveraged by adversaries to execute malicious scripts and evade detection. """ index = ["winlogbeat-*"] language = "kuery" license = "Elastic License" name = "Network Connection via MsXsl" risk_score = 21 rule_id = "b86afe07-0d98-4738-b15d-8d7465f95ff5" severity = "low" tags = ["Elastic", "Windows"] type = "query" query = ''' process.name:msxsl.exe and event.action:"Network connection detected (rule: NetworkConnect)" and not destination.ip:(10.0.0.0/8 or 172.16.0.0/12 or 192.168.0.0/16) ''' [[rule.threat]] framework = "MITRE ATT&CK" [[rule.threat.technique]] id = "T1220" name = "XSL Script Processing" reference = "https://attack.mitre.org/techniques/T1220/" [rule.threat.tactic] id = "TA0002" name = "Execution" reference = "https://attack.mitre.org/tactics/TA0002/"