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Command-Line_Analysis.yml
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Command-Line_Analysis.yml
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id: Command-Line Analysis
version: 1
contentitemexportablefields:
contentitemfields:
packID: CommonPlaybooks
packName: Common Playbooks
itemVersion: 2.2.1
fromServerVersion: 6.0.0
toServerVersion: ""
definitionid: ""
vcShouldKeepItemLegacyProdMachine: false
name: Command-Line Analysis
description: "This playbook takes the command line from the alert and performs the
following actions:\n- Checks for base64 string and decodes if exists\n- Extracts
and enriches indicators from the command line\n- Checks specific arguments for malicious
usage \n\nAt the end of the playbook, it sets a possible verdict for the command
line, based on the finding:\n1. Indicators found in the command line\n2. Found AMSI
techniques\n3. Found suspicious parameters\n4. Usage of malicious tools\n5. Indication
of network activity"
starttaskid: "0"
tasks:
"0":
id: "0"
taskid: a2848830-3438-4bea-87eb-793c8026f1ef
type: start
task:
id: a2848830-3438-4bea-87eb-793c8026f1ef
version: -1
name: ""
iscommand: false
brand: ""
nexttasks:
'#none#':
- "33"
separatecontext: false
continueonerrortype: ""
view: |-
{
"position": {
"x": 1150,
"y": -1200
}
}
note: false
timertriggers: []
ignoreworker: false
skipunavailable: false
quietmode: 0
isoversize: false
isautoswitchedtoquietmode: false
"4":
id: "4"
taskid: d0ba6b98-7de7-4621-8d6b-85a067f4f314
type: title
task:
id: d0ba6b98-7de7-4621-8d6b-85a067f4f314
version: -1
name: Command-Line Indicator Extraction
description: Extracts indicators from the command line.
type: title
iscommand: false
brand: Builtin
nexttasks:
'#none#':
- "23"
separatecontext: false
continueonerrortype: ""
view: |-
{
"position": {
"x": 1150,
"y": 130
}
}
note: false
timertriggers: []
ignoreworker: false
skipunavailable: false
quietmode: 0
isoversize: false
isautoswitchedtoquietmode: false
"5":
id: "5"
taskid: cff18017-7f58-4d68-86b3-612ee9297bfb
type: regular
task:
id: cff18017-7f58-4d68-86b3-612ee9297bfb
version: -1
name: Enrich indicators
description: Enriches indicators from the command line.
script: Builtin|||enrichIndicators
type: regular
iscommand: true
brand: Builtin
nexttasks:
'#none#':
- "12"
scriptarguments:
indicatorsValues:
complex:
root: ExtractedIndicators
accessor: IP
transformers:
- operator: append
args:
item:
value:
simple: ExtractedIndicators.URL
iscontext: true
- operator: append
args:
item:
value:
simple: ExtractedIndicators.Domain
iscontext: true
- operator: append
args:
item:
value:
simple: ExtractedIndicators.file
iscontext: true
retry-count:
simple: "3"
retry-interval:
simple: "10"
separatecontext: false
continueonerrortype: ""
view: |-
{
"position": {
"x": 740,
"y": 600
}
}
note: false
timertriggers: []
ignoreworker: false
skipunavailable: false
quietmode: 0
isoversize: false
isautoswitchedtoquietmode: false
"6":
id: "6"
taskid: c03e8d8d-8661-4743-891f-e6354f342c07
type: condition
task:
id: c03e8d8d-8661-4743-891f-e6354f342c07
version: -1
name: Found additional indicators?
description: Checks if indicators exist in the command line for which to enrich.
type: condition
iscommand: false
brand: ""
nexttasks:
'#default#':
- "12"
"yes":
- "5"
separatecontext: false
conditions:
- label: "yes"
condition:
- - operator: isNotEmpty
left:
value:
complex:
root: ExtractedIndicators
filters:
- - operator: isNotExists
left:
value:
simple: ExtractedIndicators.Attack_Pattern
iscontext: true
iscontext: true
right:
value: {}
continueonerrortype: ""
view: |-
{
"position": {
"x": 1150,
"y": 430
}
}
note: false
timertriggers: []
ignoreworker: false
skipunavailable: false
quietmode: 0
isoversize: false
isautoswitchedtoquietmode: false
"7":
id: "7"
taskid: 95c7a960-8b66-48f0-8510-ed22481ae4f2
type: condition
task:
id: 95c7a960-8b66-48f0-8510-ed22481ae4f2
version: -1
name: Is there a base64 string in the command-line?
description: Checks for a base64 string in the command line.
type: condition
iscommand: false
brand: ""
nexttasks:
'#default#':
- "4"
"yes":
- "8"
separatecontext: false
conditions:
- label: "yes"
condition:
- - operator: isNotEmpty
left:
value:
complex:
root: MatchRegex
accessor: results
iscontext: true
right:
value: {}
continueonerrortype: ""
view: |-
{
"position": {
"x": 920,
"y": -540
}
}
note: false
timertriggers: []
ignoreworker: false
skipunavailable: false
quietmode: 0
isoversize: false
isautoswitchedtoquietmode: false
"8":
id: "8"
taskid: d3be2808-0367-4d39-80d5-8526a2abf84f
type: regular
task:
id: d3be2808-0367-4d39-80d5-8526a2abf84f
version: -1
name: Decode base64 string
description: Decodes an input in Base64 format.
scriptName: Base64Decode
type: regular
iscommand: false
brand: ""
nexttasks:
'#none#':
- "24"
scriptarguments:
value:
complex:
root: MatchRegex
accessor: results
separatecontext: false
continueonerrortype: ""
view: |-
{
"position": {
"x": 730,
"y": -370
}
}
note: false
timertriggers: []
ignoreworker: false
skipunavailable: false
quietmode: 0
isoversize: false
isautoswitchedtoquietmode: false
"9":
id: "9"
taskid: 9e5742ee-5780-4374-8762-1023b0163f02
type: title
task:
id: 9e5742ee-5780-4374-8762-1023b0163f02
version: -1
name: Done
type: title
iscommand: false
brand: ""
separatecontext: false
continueonerrortype: ""
view: |-
{
"position": {
"x": 1150,
"y": 1330
}
}
note: false
timertriggers: []
ignoreworker: false
skipunavailable: false
quietmode: 0
isoversize: false
isautoswitchedtoquietmode: false
"11":
id: "11"
taskid: bedf7a15-c692-464d-8d5f-22206898b99d
type: regular
task:
id: bedf7a15-c692-464d-8d5f-22206898b99d
version: -1
name: Check if base64 string exists in command-line
description: Extracts regex data from the provided text. The script support
groups and looping.
scriptName: MatchRegexV2
type: regular
iscommand: false
brand: ""
nexttasks:
'#none#':
- "7"
scriptarguments:
data:
complex:
root: commandline
group:
simple: "1"
regex:
simple: (?:\s+)((?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4}))
separatecontext: false
continueonerrortype: ""
view: |-
{
"position": {
"x": 920,
"y": -690
}
}
note: false
timertriggers: []
ignoreworker: false
skipunavailable: false
quietmode: 0
isoversize: false
isautoswitchedtoquietmode: false
"12":
id: "12"
taskid: 5610ad88-bc53-45a1-865c-6a6b607e1a98
type: title
task:
id: 5610ad88-bc53-45a1-865c-6a6b607e1a98
version: -1
name: Command-Line Parameters
type: title
iscommand: false
brand: ""
nexttasks:
'#none#':
- "15"
- "19"
- "21"
- "22"
- "31"
separatecontext: false
continueonerrortype: ""
view: |-
{
"position": {
"x": 1150,
"y": 770
}
}
note: false
timertriggers: []
ignoreworker: false
skipunavailable: false
quietmode: 0
isoversize: false
isautoswitchedtoquietmode: false
"13":
id: "13"
taskid: b027e4bc-d481-4f58-842d-395bd7ef348f
type: regular
task:
id: b027e4bc-d481-4f58-842d-395bd7ef348f
version: -1
name: Set command line verdict of networkActivity
description: Sets a value in context from the key entered.
scriptName: Set
type: regular
iscommand: false
brand: ""
nexttasks:
'#none#':
- "9"
scriptarguments:
key:
simple: CommandlineVerdict.networkActivity
value:
simple: "True"
separatecontext: false
continueonerrortype: ""
view: |-
{
"position": {
"x": 500,
"y": 1130
}
}
note: false
timertriggers: []
ignoreworker: false
skipunavailable: false
quietmode: 0
isoversize: false
isautoswitchedtoquietmode: false
"15":
id: "15"
taskid: 961ec942-dacf-4f4a-8b34-7e2847919a5e
type: condition
task:
id: 961ec942-dacf-4f4a-8b34-7e2847919a5e
version: -1
name: Check for suspicious parameters usage
description: Checks for suspicious parameters usage.
type: condition
iscommand: false
brand: ""
nexttasks:
'#default#':
- "9"
"yes":
- "27"
separatecontext: false
conditions:
- label: "yes"
condition:
- - operator: containsString
left:
value:
complex:
root: commandline
accessor: original
transformers:
- operator: append
args:
item:
value:
simple: commandline.decoded
iscontext: true
iscontext: true
right:
value:
simple: -w hidden
- operator: containsString
left:
value:
complex:
root: commandline
accessor: original
transformers:
- operator: append
args:
item:
value:
simple: commandline.decoded
iscontext: true
iscontext: true
right:
value:
simple: -WindowStyle Hidden
ignorecase: true
- operator: containsString
left:
value:
complex:
root: commandline
accessor: original
transformers:
- operator: append
args:
item:
value:
simple: commandline.decoded
iscontext: true
right:
value:
simple: -window hidden
ignorecase: true
- operator: containsString
left:
value:
complex:
root: commandline
accessor: original
transformers:
- operator: append
args:
item:
value:
simple: commandline.decoded
iscontext: true
iscontext: true
right:
value:
simple: -noni
ignorecase: true
- operator: containsString
left:
value:
complex:
root: commandline
accessor: original
transformers:
- operator: append
args:
item:
value:
simple: commandline.decoded
iscontext: true
iscontext: true
right:
value:
simple: -NonInteractive
ignorecase: true
- operator: containsString
left:
value:
complex:
root: commandline
accessor: original
transformers:
- operator: append
args:
item:
value:
simple: commandline.decoded
iscontext: true
iscontext: true
right:
value:
simple: -nop
ignorecase: true
- operator: containsString
left:
value:
complex:
root: commandline
accessor: original
transformers:
- operator: append
args:
item:
value:
simple: commandline.decoded
iscontext: true
iscontext: true
right:
value:
simple: -noprofile
ignorecase: true
- operator: containsString
left:
value:
complex:
root: commandline
accessor: original
transformers:
- operator: append
args:
item:
value:
simple: commandline.decoded
iscontext: true
iscontext: true
right:
value:
simple: -ExecutionPolicy Bypass
ignorecase: true
- operator: containsString
left:
value:
complex:
root: commandline
accessor: original
transformers:
- operator: append
args:
item:
value:
simple: commandline.decoded
iscontext: true
iscontext: true
right:
value:
simple: Bypass
ignorecase: true
- operator: containsString
left:
value:
complex:
root: commandline
accessor: original
iscontext: true
right:
value:
simple: Invoke-Expression
ignorecase: true
- operator: containsString
left:
value:
complex:
root: commandline
accessor: original
transformers:
- operator: append
args:
item:
value:
simple: commandline.decoded
iscontext: true
iscontext: true
right:
value:
simple: -iex
ignorecase: true
- operator: containsString
left:
value:
complex:
root: commandline
accessor: original
transformers:
- operator: append
args:
item:
value:
simple: commandline.decoded
iscontext: true
iscontext: true
right:
value:
simple: ClipboardContents
- operator: containsString
left:
value:
complex:
root: commandline
accessor: original
transformers:
- operator: append
args:
item:
value:
simple: commandline.decoded
iscontext: true
iscontext: true
right:
value:
simple: Screenshot
- operator: containsString
left:
value:
complex:
root: commandline
accessor: original
transformers:
- operator: append
args:
item:
value:
simple: commandline.decoded
iscontext: true
iscontext: true
right:
value:
simple: Get-LSASecret
- operator: containsString
left:
value:
complex:
root: commandline
accessor: original
transformers:
- operator: append
args:
item:
value:
simple: commandline.decoded
iscontext: true
iscontext: true
right:
value:
simple: Get-GPPPassword
continueonerrortype: ""
view: |-
{
"position": {
"x": 1380,
"y": 930
}
}
note: false
timertriggers: []
ignoreworker: false
skipunavailable: false
quietmode: 0
isoversize: false
isautoswitchedtoquietmode: false
"17":
id: "17"
taskid: 2454d7b3-9568-4007-81ec-c1ef25acbcf3
type: condition
task:
id: 2454d7b3-9568-4007-81ec-c1ef25acbcf3
version: -1
name: Check for encoded command parameters
description: Checks for encoded command parameters.
type: condition
iscommand: false
brand: ""
nexttasks:
'#default#':
- "4"
"yes":
- "11"
separatecontext: false
conditions:
- label: "yes"
condition:
- - operator: containsGeneral
left:
value:
complex:
root: commandline
iscontext: true
right:
value:
simple: -EncodedCommand
ignorecase: true
- operator: containsGeneral
left:
value:
complex:
root: commandline
iscontext: true
right:
value:
simple: -enc
ignorecase: true
- operator: containsGeneral
left:
value:
complex:
root: commandline
iscontext: true
right:
value:
simple: –^e^C^
ignorecase: true
continueonerrortype: ""
view: |-
{
"position": {
"x": 1150,
"y": -860
}
}
note: false
timertriggers: []
ignoreworker: false
skipunavailable: false
quietmode: 0
isoversize: false
isautoswitchedtoquietmode: false
"19":
id: "19"
taskid: 6f484473-7f55-4d72-8ce3-07361395169c
type: condition
task:
id: 6f484473-7f55-4d72-8ce3-07361395169c
version: -1
name: Check for network activity parameters
description: Checks for network activity parameters.
type: condition
iscommand: false
brand: ""
nexttasks:
'#default#':
- "9"
"yes":
- "13"
separatecontext: false
conditions:
- label: "yes"
condition:
- - operator: containsString
left:
value:
complex:
root: commandline
accessor: original
transformers:
- operator: append
args:
item:
value:
simple: commandline.decoded
iscontext: true
iscontext: true
right:
value:
simple: (New-object System.net.webclient).DownlodFile()
ignorecase: true
- operator: containsString
left:
value:
complex:
root: commandline
accessor: original
transformers:
- operator: append
args:
item:
value:
simple: commandline.decoded
iscontext: true
iscontext: true
right:
value:
simple: (New-object System.net.Webclient).DownloadString()
ignorecase: true
- operator: containsString
left:
value:
complex:
root: commandline
accessor: original
transformers:
- operator: append
args:
item:
value:
simple: commandline.decoded
iscontext: true
iscontext: true
right:
value:
simple: Net.webclient
ignorecase: true
continueonerrortype: ""
view: |-
{
"position": {
"x": 500,
"y": 930
}
}
note: false
timertriggers: []
ignoreworker: false
skipunavailable: false
quietmode: 0
isoversize: false
isautoswitchedtoquietmode: false
"21":
id: "21"
taskid: e3b1b82d-4b1c-4cd4-8273-f4b2b3f9477f
type: condition
task:
id: e3b1b82d-4b1c-4cd4-8273-f4b2b3f9477f
version: -1
name: Check for malicious tools usage
description: Checks for malicious tools usage.
type: condition
iscommand: false
brand: ""
nexttasks:
'#default#':
- "9"
"yes":
- "26"
separatecontext: false
conditions:
- label: "yes"
condition:
- - operator: containsString
left:
value:
complex:
root: commandline
accessor: original
transformers:
- operator: append
args:
item:
value:
simple: commandline.decoded
iscontext: true
iscontext: true
right:
value:
simple: mimikatz
- operator: containsString
left:
value:
complex:
root: commandline
accessor: original
transformers:
- operator: append
args:
item:
value:
simple: commandline.decoded
iscontext: true
iscontext: true
right:
value:
simple: NinjaCopy
- operator: containsString
left:
value:
complex:
root: commandline
accessor: original
transformers:
- operator: append
args:
item:
value:
simple: commandline.decoded
iscontext: true
iscontext: true
right:
value:
simple: NetRipper
- operator: containsString
left:
value:
complex:
root: commandline
accessor: original
transformers:
- operator: append
args:
item:
value:
simple: commandline.decoded
iscontext: true
iscontext: true
right:
value:
simple: ThunderStruck
- operator: containsString
left:
value:
complex:
root: commandline
accessor: original
transformers:
- operator: append
args:
item:
value:
simple: commandline.decoded
iscontext: true
iscontext: true
right:
value:
simple: PsExec
- operator: containsString
left:
value:
complex:
root: commandline
accessor: original
transformers:
- operator: append
args:
item:
value:
simple: commandline.decoded
iscontext: true
iscontext: true
right:
value:
simple: Mimikittenz
- operator: containsString
left:
value:
complex:
root: commandline
accessor: original
transformers:
- operator: append
args:
item:
value:
simple: commandline.decoded
iscontext: true
iscontext: true
right:
value: