From 0b64638bf7949f703b15a992425375bef72efeb7 Mon Sep 17 00:00:00 2001
From: Isai <59296946+imays11@users.noreply.github.com>
Date: Mon, 17 Jul 2023 12:29:02 -0400
Subject: [PATCH] [New Rule] AWS Credentials Searched For Inside a Container
 (#2887)

* new rule toml

* Updated query

updated query based on review and added additional search queries

* updated rule query based on review

Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com>

---------

Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com>
Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>
---
 ...s_aws_creds_search_inside_a_container.toml | 53 +++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 rules/integrations/cloud_defend/credential_access_aws_creds_search_inside_a_container.toml

diff --git a/rules/integrations/cloud_defend/credential_access_aws_creds_search_inside_a_container.toml b/rules/integrations/cloud_defend/credential_access_aws_creds_search_inside_a_container.toml
new file mode 100644
index 000000000..4311d3809
--- /dev/null
+++ b/rules/integrations/cloud_defend/credential_access_aws_creds_search_inside_a_container.toml
@@ -0,0 +1,53 @@
+[metadata]
+creation_date = "2023/06/28"
+integration = ["cloud_defend"]
+maturity = "production"
+min_stack_comments = "New Integration: Cloud Defend"
+min_stack_version = "8.8.0"
+updated_date = "2023/06/28"
+
+[rule]
+author = ["Elastic"]
+description = "This rule detects the use of system search utilities like grep and find to search for AWS credentials inside a container. Unauthorized access to these sensitive files could lead to further compromise of the container environment or facilitate a container breakout to the underlying cloud environment."
+from = "now-6m"
+index = ["logs-cloud_defend*"]
+interval = "5m"
+language = "eql"
+license = "Elastic License v2"
+name = "AWS Credentials Searched For Inside A Container"
+tags = ["Data Source: Elastic Defend for Containers", "Domain: Container", "OS: Linux", "Use Case: Threat Detection", "Tactic: Credential Access"]
+references = [
+    "https://sysdig.com/blog/threat-detection-aws-cloud-containers/",
+]
+risk_score = 47
+rule_id = "d0b0f3ed-0b37-44bf-adee-e8cb7de92767"
+severity = "medium"
+timestamp_override = "event.ingested"
+type = "eql"
+
+query = """
+process where event.module == "cloud_defend" and     
+  event.type == "start" and
+  
+/*account for tools that execute utilities as a subprocess, in this case the target utility name will appear as a process arg*/
+(process.name : ("grep", "egrep", "fgrep", "find", "locate", "mlocate") or process.args : ("grep", "egrep", "fgrep", "find", "locate", "mlocate")) and 
+process.args : ("*aws_access_key_id*", "*aws_secret_access_key*", "*aws_session_token*", "*accesskeyid*", "*secretaccesskey*", "*access_key*", "*.aws/credentials*")
+"""
+
+[[rule.threat]]
+framework = "MITRE ATT&CK"
+
+  [rule.threat.tactic]
+  id = "TA0006"
+  reference = "https://attack.mitre.org/tactics/TA0006/"
+  name = "Credential Access"
+
+  [[rule.threat.technique]]
+  id = "T1552"
+  reference = "https://attack.mitre.org/techniques/T1552/"
+  name = "Unsecured Credentials"
+
+    [[rule.threat.technique.subtechnique]]
+    id = "T1552.001"
+    reference = "https://attack.mitre.org/techniques/T1552/001/"
+    name = "Credentials In Files"