可疑的 ScreenConnect 客户端子进程
编辑可疑的 ScreenConnect 客户端子进程
编辑识别由 ScreenConnect 客户端进程生成的可疑进程。此活动可能表明利用对 ScreenConnect 远程访问软件的未授权访问进行执行。
规则类型: eql
规则索引:
- logs-endpoint.events.process-*
- winlogbeat-*
- logs-windows.sysmon_operational-*
- logs-system.security*
- endgame-*
- logs-sentinel_one_cloud_funnel.*
- logs-m365_defender.event-*
- logs-crowdstrike.fdr*
严重性: 中等
风险评分: 47
每运行: 5 分钟
搜索索引自: now-9m (日期数学格式，另见 额外回溯时间)
每次执行的最大告警数: 100
参考:
标签:
- 领域：端点
- 操作系统：Windows
- 用例：威胁检测
- 策略：命令和控制
- 资源：调查指南
- 数据源：Elastic Endgame
- 数据源：Elastic Defend
- 数据源：Sysmon
- 数据源：SentinelOne
- 数据源：Microsoft Defender for Endpoint
- 数据源：系统
- 数据源：Crowdstrike
版本: 307
规则作者:
- Elastic
规则许可证: Elastic License v2
规则查询
编辑process where host.os.type == "windows" and event.type == "start" and
process.parent.name :
("ScreenConnect.ClientService.exe",
"ScreenConnect.WindowsClient.exe",
"ScreenConnect.WindowsBackstageShell.exe",
"ScreenConnect.WindowsFileManager.exe") and
(
(process.name : "powershell.exe" and
process.args : ("-enc", "-ec", "-e", "*downloadstring*", "*Reflection.Assembly*", "*http*")) or
(process.name : "cmd.exe" and process.args : "/c") or
(process.name : "net.exe" and process.args : "/add") or
(process.name : "schtasks.exe" and process.args : ("/create", "-create")) or
(process.name : "sc.exe" and process.args : "create") or
(process.name : "rundll32.exe" and not process.args : "url.dll,FileProtocolHandler") or
(process.name : "msiexec.exe" and process.args : ("/i", "-i") and
process.args : ("/q", "/quiet", "/qn", "-q", "-quiet", "-qn", "-Q+")) or
process.name : ("mshta.exe", "certutil.exe", "bistadmin.exe", "certreq.exe", "wscript.exe", "cscript.exe", "curl.exe",
"ssh.exe", "scp.exe", "wevtutil.exe", "wget.exe", "wmic.exe")
)
框架: MITRE ATT&CKTM
-
策略
- 名称：命令和控制
- ID：TA0011
- 参考网址：https://attack.mitre.org/tactics/TA0011/
-
技术
- 名称：远程访问软件
- ID：T1219
- 参考网址：https://attack.mitre.org/techniques/T1219/