Command-Line Analysis

This Playbook is part of the Common Playbooks Pack.

Supported versions

Supported Cortex XSOAR versions: 6.0.0 and later.

This playbook takes a command line from the alert and performs the following actions:

• Checks for base64 string and decodes if exists
• Extracts and enriches indicators from the command line
• Checks specific arguments for malicious usage

At the end of the playbook, it sets a possible verdict for the command line, based on the finding:

1. Indicators found in the command line
2. Found AMSI techniques
3. Found suspicious parameters
4. Usage of malicious tools
5. Indication of network activity
6. Indication of suspicious LOLBIN execution
7. Suspicious path and arguments in the command line

Note: To run this playbook with a list of command lines, set this playbook to run in a loop. To do so, navigate to 'Loop' and check "For Each Input".

Dependencies

This playbook uses the following sub-playbooks, integrations, and scripts.

Sub-playbooks

• Compare Process Execution Arguments To LOLBAS Patterns

Integrations

This playbook does not use any integrations.

Scripts

• Base64Decode
• DeleteContext
• MatchRegexV2
• Set

Commands

• extractIndicators

Playbook Inputs

---

Name	Description	Default Value	Required
Commandline	The command line.		Optional
StringSimilarityThreshold	StringSimilarity automation threshold. Used by the Compare "Process Execution Arguments To LOLBAS Patterns" sub-playbook. This input controls the StringSimilarity automation threshold.	0.5	Optional

Playbook Outputs

---

Path	Description	Type
MatchRegex	The regex found in the command line.	unknown
Indicators	Indicators extracted from the command line.	unknown
commandline.original	The original command line.	unknown
commandline.decoded	The decoded command line.	unknown
IP	The IP object.	unknown
URL	The URL object.	uknown
File	The file object.	unknown
Domain	The domain object.	unknown
CommandlineVerdict.base64	Command line verdict base64 was found. True/False	unknown
CommandlineVerdict.suspiciousParameters	Command line verdict suspicious parameters found. True/False	unknown
CommandlineVerdict.AMSI	Command line verdict AMSI found. True/False	unknown
CommandlineVerdict.foundIndicators	Command line verdict foundIndicators found. True/False	unknown
CommandlineVerdict.maliciousTools	Command line verdict maliciousTools found. True/False	unknown
CommandlineVerdict.networkActivity	Command line verdict networkActivity found. True/False	unknown
CommandlineVerdict.SuspiciousLolbinExecution	Command line verdict SuspiciousLolbinExecution found. True/False	unknown
CommandlineVerdict.SuspiciousCmdPathAndArguments	Command line verdict SuspiciousCmdPathAndArguments found. True/False	unknown

Playbook Image

---