Jonhnathan
b4c84e8a40
* Update Tags * Bump updated date separately to be easy to revert if needed * Update resource_development_ml_linux_anomalous_compiler_activity.toml * Apply changes from the discussion * Update persistence_init_d_file_creation.toml * Update defense_evasion_timestomp_sysmon.toml * Update defense_evasion_application_removed_from_blocklist_in_google_workspace.toml * Update missing Tactic tags * Update unit tests to match new tags * Add missing IG tags * Delete okta_threat_detected_by_okta_threatinsight.toml * Update command_and_control_google_drive_malicious_file_download.toml * Update persistence_rc_script_creation.toml * Mass bump * Update persistence_shell_activity_by_web_server.toml * . --------- Co-authored-by: Mika Ayenson <Mika.ayenson@elastic.co> Co-authored-by: Mika Ayenson <Mikaayenson@users.noreply.github.com>
68 lines
2.1 KiB
TOML
68 lines
2.1 KiB
TOML
[metadata]
|
|
creation_date = "2023/01/13"
|
|
integration = ["endpoint"]
|
|
maturity = "production"
|
|
min_stack_comments = "New fields added: required_fields, related_integrations, setup"
|
|
min_stack_version = "8.3.0"
|
|
updated_date = "2023/06/22"
|
|
|
|
[rule]
|
|
author = ["Elastic"]
|
|
description = """
|
|
Identifies downloads of executable and archive files via the Windows Background Intelligent Transfer Service (BITS).
|
|
Adversaries could leverage Windows BITS transfer jobs to download remote payloads.
|
|
"""
|
|
from = "now-9m"
|
|
index = ["logs-endpoint.events.*"]
|
|
language = "eql"
|
|
license = "Elastic License v2"
|
|
name = "Ingress Transfer via Windows BITS"
|
|
references = ["https://attack.mitre.org/techniques/T1197/"]
|
|
risk_score = 21
|
|
rule_id = "f95972d3-c23b-463b-89a8-796b3f369b49"
|
|
severity = "low"
|
|
tags = ["Domain: Endpoint", "OS: Windows", "Use Case: Threat Detection", "Tactic: Defense Evasion", "Tactic: Command and Control"]
|
|
timestamp_override = "event.ingested"
|
|
type = "eql"
|
|
|
|
query = '''
|
|
file where host.os.type == "windows" and event.action == "rename" and
|
|
|
|
process.name : "svchost.exe" and file.Ext.original.name : "BIT*.tmp" and
|
|
(file.extension :("exe", "zip", "rar", "bat", "dll", "ps1", "vbs", "wsh", "js", "vbe", "pif", "scr", "cmd", "cpl") or file.Ext.header_bytes : "4d5a*") and
|
|
|
|
/* noisy paths, for hunting purposes you can use the same query without the following exclusions */
|
|
not file.path : ("?:\\Program Files\\*", "?:\\Program Files (x86)\\*", "?:\\Windows\\*", "?:\\ProgramData\\*\\*") and
|
|
|
|
/* lot of third party SW use BITS to download executables with a long file name */
|
|
not length(file.name) > 30
|
|
'''
|
|
|
|
|
|
[[rule.threat]]
|
|
framework = "MITRE ATT&CK"
|
|
[[rule.threat.technique]]
|
|
id = "T1105"
|
|
name = "Ingress Tool Transfer"
|
|
reference = "https://attack.mitre.org/techniques/T1105/"
|
|
|
|
|
|
[rule.threat.tactic]
|
|
id = "TA0011"
|
|
name = "Command and Control"
|
|
reference = "https://attack.mitre.org/tactics/TA0011/"
|
|
|
|
|
|
[[rule.threat]]
|
|
framework = "MITRE ATT&CK"
|
|
[[rule.threat.technique]]
|
|
id = "T1197"
|
|
name = "BITS Jobs"
|
|
reference = "https://attack.mitre.org/techniques/T1197/"
|
|
|
|
|
|
[rule.threat.tactic]
|
|
id = "TA0005"
|
|
name = "Defense Evasion"
|
|
reference = "https://attack.mitre.org/tactics/TA0005/"
|