使用命令行

<?xml version='1.0' encoding='UTF-8'?>
<rule>
  <description>
    <name>RAR Encrypts and Deletes Files [B0601]</name>
    <category>Ransomware / Filecoders</category>
    <os>Windows</os>
    <severity>84</severity>
    <mitreattackid>T1560.001,T1486</mitreattackid>
    <explanation>A RAR archiver was executed, instructed to password-protect an archive, and delete the source files. If the user isn't aware of the activity, it may indicate ransomware activity.</explanation>
    <benignCauses>It can be a legitimate action of the user to protect data by encrypting it.</benignCauses>
    <maliciousCauses>Used by some filecoders to encrypt and delete a user's data.</maliciousCauses>
    <recommendedActions>1. Investigate the activity:
   * Is it a single activity or a sequence?
   * What is the count and type of files involved?
   * Was it initiated by the user or not?
2. What process initiated the activity?
   * Is it a well known and trusted program?
   * Is it signed by a trustworthy vendor?
   * Scan it with your Antivirus product or check its reputation and popularity directly in the Inspect console.
   * If suspicious, submit the program for further analysis.
3. Use the password from command line logged by Inspect to recover the encrypted files.</recommendedActions>
  </description>
  <definition>
    <process>
      <operator type="AND">
        <condition component="FileItem" property="FileNameWithoutExtension" condition="is" value="rar"/>
        <operator type="AND">
          <operator type="OR">
            <condition component="ProcessInfo" property="CommandLine" condition="contains" value="-p"/>
            <condition component="ProcessInfo" property="CommandLine" condition="contains" value="-hp"/>
          </operator>
          <operator type="OR">
            <condition component="ProcessInfo" property="CommandLine" condition="contains" value="-df"/>
            <condition component="ProcessInfo" property="CommandLine" condition="contains" value="-dw"/>
          </operator>
        </operator>
      </operator>
    </process>
  </definition>
  <maliciousTarget name="parent"/>
  <actions>
    <action name="TriggerDetection"/>
    <action name="StoreEvent"/>
    <action name="SubmitParentToLiveGuard"/>
  </actions>
</rule>