2021 Archive

2021 Archive of released Falco Rules.

Commit Date	Rule Notes	Version of the Falco Rules Installer (On-Prem)
December 16, 2021	Rule Changes Add a new rule:`Malicious C2 IPs or domains exploiting log4j: detect connections with malicious IPs involved in log4j exploitation`. Updated IoCs Ruleset with new findings	0.49.2
January 03, 2022	Rule Changes Created a new AWS Rule: `Read Object through AWSSupportServiceRolePolicy Assumed Role`. Updated tags for AWS Rule:`AWS Command Executed on Unused Region`. Updated tags for the following GCP Rules: `GCP Invitation Sent to Non-corporate Account` `GCP Create User-managed Service Account Key` `GCP Create GCP-managed Service Account Key` `GCP Create Cloud Function Not Using Latest Runtime` `GCP Set Bucket IAM Policy` `GCP Create Bucket`	0.48.0
December 06, 2021	Rule Changes Add a new rule:`Find AWS Credentials: Find or grep AWS credentials in host or container`. Add additional exceptions formats to aid in addressing false positives for rules: `K8s ConfigMap Deleted`. Updated IoCs Ruleset with new findings	0.46.2
November 30, 2021	Rule Changes Add additional exceptions formats to aid in addressing false positives for rules: `Create Sensitive Mount Pod`. Updated IoCs Ruleset with new findings	0.46.0
November 22, 2021	Rule Changes Created a new GCP Rule: `GCP Create Cloud Function` Create following Azure Rules: `Azure Remember MFA for User Access on Devices` `Azure Users Can Consent to Apps Accessing Company Data on Their Behalf` `Azure Deactivate MFA for User Access` `Azure Container ACL Modified` Add additional exceptions formats to aid in addressing false positives for rules: `Modify Shell Configuration File` `Launch Privileged Container` `Container Run as Root User`s Updated IoCs Ruleset with new findings Updated AWS, Azure,and GCP tags	0.45.1
November 16, 2021	Rule Changes Updated IoCs Ruleset with new findings.	0.44.1
November 15, 2021	Rule Changes Added new rule for AWS Cloudtrail: `Create Lambda Function Using Unsupported Runtime` Modified rule for AWS Cloudtrail:`Run Instances with Non-standard Image`now checks the image ID from `aws.ec2.imageID` instead of getting this value from `respondeElements/instanceSet/items` using jevt	0.44.0
November 11, 2021	Rule Changes Added new tags to the following rules: `GCP Delete Resources from the PCI Blueprint Environment` `GCP Create KMS Key Without Rotation` `GCP Remove KMS Key Rotation` `GCP Delete DNS Zone` `GCP Delete GKE Node Pool` `GCP Delete Router` `GCP Delete GKE IAM Role` `GCP Delete VPC Network` `GCP Delete GKE Subnetwork`	0.43.2
November 5, 2021	Rule Changes Added new tags to existent rules for MITRE and NIST categories.	0.43.1
October 29, 2021	Rule Changes Added new tags to the following rules: `Modify RDS Snapshot Attribute` `Modify Image Attribute` `Modify Snapshot Attribute` `Detect outbound connections to common miner pool ports` `Detect crypto miners using the Stratum protocol` Updated Malware IoCs with the new findings.	0.42.0
October 20, 2021	Rule Changes Add additional exceptions formats to aid in addressing false positives for rules: `Modify Shell Configuration File` `Run shell untrusted` `Launch Sensitive Mount Container` `Outbound or Inbound Traffic not to Authorized Server Process and Port` `Create Sensitive Mount Pod` `Create NodePort Service` `Attach/Exec Pod` `Service Account Created in Kube Namespace` `System ClusterRole Modified/Deleted` Default Policy Changes Lowered Severity to INFO for the following policies: `All K8s User Modifications` `All K8s Object Modifications`	0.41.0
October 11, 2021	Rule Changes Add additional exceptions formats to aid in addressing false positives for rules: `Modify binary dirs` `Clear Log Activities` `Remove Bulk Data from Disk` `Create HostNetwork Pod` `Launch Suspicious Network Tool in Container` Added three new Falco rules to detect Malware: `Malicious IPs or domains detected on command line` `Malicious binary detected` `Malicious process detected` Default Policy Changes Added New Policy IoCs Malware Activity	0.40.0
October 07, 2021	Rule Changes Changed inbound_outbound macro condition. Add additional exceptions formats to aid in addressing false positives for rules: `Write below etc` `Read sensitive file untrusted` `Search Private Keys or Passwords` `Disallowed K8s User` `K8s Deployment Created` `K8s Deployment Deleted` `K8s Service Created` `K8s Service Deleted` `K8s ConfigMap Created` `K8s ConfigMap Deleted` `K8s Namespace Created` `K8s Namespace Deleted` `K8s Serviceaccount Created` `K8s Serviceaccount Deleted` `K8s Role/Clusterrole Created` `K8s Role/Clusterrole Deleted` `K8s Role/Clusterrolebinding Created` `K8s Role/Clusterrolebinding Deleted`	0.39.0
September 23, 2021	Rule Changes Changed `net_miner_pool` macro used in the `Detect outbound connections to common miner pool ports` rule.	0.37.1
September 21, 2021	Rule Changes Add additional exceptions formats to aid in addressing false positives for rules: `Non sudo setuid` rule.	0.37.0
August 26, 2021	Rule Changes Added the following rules: `Console Login Through Assume Role` `AWS Command Executed by Untrusted User` `Console Login Success` `Console Login Success From Untrusted IP` `Delete AWS user` `Remove AWS User from Group` `Put Object in Watched Bucket` `Read Object in Watched Bucket` Added new lists: `trusted_aws_users` `watched_buckets` Updated rules: `Console Login Without MFA` now does not fire on assumed role `Console Root Login Without MFA` now does not fire on assumed role `Add AWS User to Group` now outputs the user added to the group	0.36.0
POSTPONED August 20, 2021	POSTPONED Rule Changes Added a new rule: `Unprivileged Delegation of Page Faults Handling to a Userspace Process` Update the list: `sysdig_commercial_images` `falco_hostnetwork_images` Updated the macro: `interactive macro updated checking the tty state. The interactive session is with proc.tty != 0`	POSTPONED 0.35.0
August 13, 2021	Rule Changes Added additional exceptions formats to aid in addressing false positive for the rules: `Launch Package Management Process in Container` `Terminal shell in container` `The docker client is executed in a container` Updated the list: `sysdig_commercial_images` Updated the macro: `interactive macro updated checking the tty state. The interactive session is with proc.tty != 0`	0.34.0
August 02, 2021	Rules Changes Add additional exceptions formats to aid in addressing false positive for rules: `DB program spawned process Rule` `Change thread namespace` `The docker client is executed in a container` `Launch Suspicious Network Tool in Container Rule`	0.33.0
July 27, 2021	Default Policy Changes Enable the `Sysdig GCP Best Practices` policy by default.	0.32.0
July 25, 2021	Rule Changes GCP events were consumed directly from the `protoPayload`, which removed some fields that are used and are not part of the `protoPayload` itself. All the rules that use `jevt.value` are updated now to reference protoPayload in the root path. It is a breaking change for GCP rules, and you are required to use cloud-connector versions above v0.8.0. Updated GCP rules to use protoPayload JSON path. Affected rules: `GCP Create API Keys for a Project` `GCP Delete Bucket` `GCP Create Bucket` `GCP List Buckets` `GCP List Bucket Objects` `GCP Put Bucket ACL` `GCP Set Bucket IAM Policy` `GCP Update Bucket` `GCP Create Cloud Function Not Using Latest Runtime` `GCP Create Cloud Function` `CloudRun Create Service` `CloudRun Replace Service` `GCP Create a Default VPC Network` `GCP Disable Subnet Flow Logs` `GCP Enable Connecting to Serial Ports for a VM Instance` `GCP Creation of a VM Instance with IP Forwarding Enabled` `GCP Suspected Disable of OS Login in a VM Instance` `GCP Enable Project-wide SSH keys for a VM Instance` `GCP Shield Disabled for a VM Instance` `GCP Create or Patch DNS Zone without DNSSEC` `GCP Describe Instance` `GCP Command Executed on Unused Region` `GCP Create GCP-managed Service Account Key` `GCP Create User-managed Service Account Key` `GCP Invitation Sent to Non-corporate Account` `GCP Operation by a Non-corporate Account` `GCP Super Admin Executing Command` `GCP Update, Disable or Delete Sink` `GCP Monitoring Alert Deleted` `GCP Monitoring Alert Updated` `GCP Disable Automatic Backups for a Cloud SQL Instance` `GCP Disable the Requirement for All Incoming Connections to Use SSL for a Cloud SQL Instance` Added a new rule: `GCP Set a Public IP for a Cloud SQL Instance`	0.31.0
July 22, 2021	No rule changes. No default policy changes. Fix a defect related to installing rules for older backend versions (Sysdig 4.0.*).	0.30.0
July 20, 2021	Default Policy Changes Sysdig AWS Best Practices severity is now set to 'medium' Sysdig GCP Best Practices severity is now set to 'medium'	0.29.0
July 19, 2021	Rule Changes Add additional exceptions formats to aid in addressing false positive for rules: `DB program spawned process Rule` `Change thread namespace` `The docker client is executed in a container`	0.28.0
July 16, 2021	Default Policy Changes Disabled `Access Cryptomining Network Policy` by default	0.27.0
July 15, 2021	Rule Changes Add additional exceptions formats to aid in addressing false positive for rules: `Run shell untrusted` `DB program spawned process` `Change thread namespace`	0.26.0
July 11, 2021	Default Policy Changes Rule changes have been applied in the following default policies: `Suspicious Package Management Changes` `Notable Filesystem Changes` `Suspicious Filesystem Reads Policy` `Suspicious Filesystem Changes` `User Management Changes` `Disallowed Network Activity` `Inadvised Container Activity` `Disallowed Container Activity` `Suspicious Container Activity` New default policies created: `Suspicious Lateral Movement Activity to Cloud` `Notable Network Activity` Default policies removed: `Suspicious Package Management Changes` `Suspicious Filesystem Reads Policy` `User Management Changes` `Disallowed Network Activity` `Disallowed Container Activity` `Inadvised Container Activity` Existent policies status changes: Access `AcceCryptomining Network enabled by Default`	0.25.0
July 01, 2021	Rule Changes Add additional exceptions formats to aid in addressing false proofs for rules: `Netcat Remote Code Execution in Container` `Launch Sensitive Mount Container` `Redirect STDOUT/STDIN to Network Connection in Container`	0.24.0
June 25, 2021	Rule Changes Add additional exceptions formats to aid in addressing false proofs for rules: `Write below root` `Change thread namespace`	0.23.0
June 22, 2021	Rule Changes Add additional exceptions formats for rules: `Change thread namespace` `Create Privileged Pod` `Modify Shell Configuration File` `Write below binary dir` `Launch Privileged Container` `The docker client is executed in a container` `ClusterRole With Wildcard Created` `Create HostNetwork Pod` `Service Account Created in Kube Namespace` `K8s Role/Clusterrole Created` `K8s Role/Clusterrole Deleted` `K8s Role/Clusterrolebinding Created` `Netcat Remote Code Execution in Container` `Delete Bash History` `ClusterRole With Write Privileges Created` `Clear Log Activities` `Modify binary dirs` `Unexpected outbound connection destination` `Unexpected UDP Traffic`	0.22.0
June 19, 2021	A new policy, `Sysdig GCP Best Practices`, has been added. Rule Changes New GCP Rules have been added for AuditLog: `GCP Create API Keys for a Project` `GCP Create Bucket` `GCP Delete Bucket` `GCP List Buckets` `GCP List Bucket Objects` `GCP Put Bucket ACL` `GCP Set Bucket IAM Policy` `GCP Update Bucket` `GCP Create Cloud Function Not Using Latest Runtime` `GCP Create Cloud Function` `GCP Update Cloud Function` `CloudRun Create Service` `CloudRun Replace Service` `GCP Create a Default VPC Network` `GCP Disable Subnet Flow Logs` `GCP Enable Connecting to Serial Ports for a VM Instance` `GCP Creation of a VM Instance with IP Forwarding Enabled` `GCP Suspected Disable of OS Login in a VM Instance` `GCP Enable Project-wide SSH keys for a VM InstanceGCP Shield Disabled for a VM Instance` `GCP Create or Patch DNS Zone without DNSSEC` `GCP Describe Instance` `GCP Command Executed on Unused Region` `GCP Create GCP-managed Service Account Key` `GCP Create User-managed Service Account Key` `GCP Invitation Sent to Non-corporate Account` `GCP Operation by a Non-corporate Account` `GCP Super Admin Executing Command` `GCP Update, Disable or Delete SinkGCP Monitoring Alert Deleted` `GCP Monitoring Alert Updated` `GCP Disable Automatic Backups for a Cloud SQL Instance` `GCP Disable the Requirement for All Incoming Connections to Use SSL for a Cloud SQL Instance`	0.21.0
June 17, 2021	Fixed a defect in v0.20.3. The fix is for the detection of older backend versions when looking for accounts scheduled for deletion.	0.20.4
June 17, 2021	Skip accounts scheduled for deletion when verifying Falco rules compatibility.	0.20.3
June 16, 2021	Rule Changes Add additional exceptions formats to allow addressing false positives for rules: `Launch Package Management Process in Container` `Set Setuid or Setgid bit` `Terminal shell in container`	0.20.2
June 11, 2021	Rules Changes Add additional exceptions formats to help address false positives for rules: `Run shell untrusted` `Set Setuid or Setgid bit`	0.20.1
June 03, 2021	Rule Changes The `Non sudo setuid` rule: Add `macmnsvc` (mcafee service host) to set of programs that are allowed to `setuid`. The `Launch Suspicious Network Tool in Container` rule: Add another zookeeper image pattern that's allowed to run network tools. The `Clear Log Activities` rule: Add another `fluentd` image as allowed to clear log files. Add additional exceptions formats to aid in addressing false positives for rules: `System procs network activity` `K8s Serviceaccount Created` `K8s Serviceaccount Deleted` `K8s Role/Clusterrole Created` `K8s Role/Clusterrole Deleted`	0.20.0
June 01, 2021	Rule Changes The `Read Sensitive File Untrusted` rule: Allow `clamscan` to read sensitive files Allow `db2ckpw` (IBM DB2 Credential Checker) to read sensitive files The `Launch Suspicious Network Tool in Container` rule: Add another zookeeper image that is allowed to run `nc` inside a container. Add additional exception patterns for the following rules: `Launch Package Management Process in Container` `K8s Serviceaccount Created` `K8s Serviceaccount Deleted` `K8s Role/Clusterrole Created` `K8s Role/Clusterrole Deleted`	0.19.0
May 26, 2021	Rule Changes Add additional Qualys binaries as exceptions for rules: `Read sensitive file untrusted` `User mgmt binaries` `Write below etc` The `Write below etc` rule: Allow `newrelic` to write below `/root/newrelic` instead of specific files Allow `nessuscli` write state file Allow `masvc` to write below `/etc/ma.d/` Allow grafana to write state The `Write below root` rule : Add an additional `cmdline` writing to `exec.fifo`. The `DB program spawned process` rule: Allow `sqlplus` spawn oracle. Add additional sets of exception fields for rules: `Write below monitored dir` `The docker client is executed in a container`	0.18.0
May 25, 2021	The Sysdig AWS Best Practices policy no longer includes the `Logged in without Using MFA` rule. Rule Changes Add five new rules for AWS Cloudtrail events. Disable the AWS Cloudtrail rule, `Logged in without Using MFA`. The `Read Sensitive File Untrusted` rule: Let the `TaniumEndpoint` agent read additional sensitive files. The `Write below root` rule, `docker_writing_state` macro: Allow for paths that simply specify a path below an implied `/` or `/root` of current working directory. The `DB program spawned process` rule: Add additional allowed Postgres backup utilities. The `Write below root` rule: Use a more flexible string match against the `/exec.fifo` paths. Allow `newrelic` CLI to write to CLI log file. Allow the docker cleanup image utility to write state files below `/`. The `Write below rpm database` rule: Allow `tanium` endpoint script to write to the rpm database. The `Contact K8S API Server From Container` rule: Add another `fluent-bit` program that is allowed to contact the API Server.	0.17.0
May 20, 2021	Rule Changes Added exception to the following to address false positives: The `Non sudo setuid` rule: Let `swiagent` read `setuid`. The `Read sensitive file untrusted` rule: Let `refresh-mcollec` (tive-metadata), part of puppet, read sensitive files. Let puppet directly read sensitive files. Let Tanium endpoint read sensitive files. Let `ir_agent` (rapid7 agent) read sensitive files. The `Write below root` rule: Add an additional command line pattern for Cassandra to allow writes to `/root/.cassandra`. Add additional `exec.fifo path` below root for `runc`. Let docker write to certain files below /. It is part of some docker-in-docker setups. Let Tanium joval write to `/root/.jOVAL/`. The `Change thread namespace` rule: Add an additional `weaveworks/kured` process name. Let `avinetworks/se` images run programs that can change thread namespaces. The `System procs network activity` rule : Add an additional exception pattern. The `User mgmt binaries`: Let `refresh-mcollec` (tive-metadata), part of puppet, run user management binaries. The `Contact K8S API Server From Container` rule: Let `fluent-bit` images run programs to contact the API server. The Launch Suspicious Network Tool in Container rule: Let certain Openshift images run `dig` to perform DNS lookups. The `Clear Log Activities` rule: Let certain Workinggrafana-related images clear log files in the container.	0.16.0
May 19, 2021	Rule Changes Additional exception fields are added to the following rules to aid in customization: K8s Secret Created K8s Secret Deleted	0.15.1
May 18, 2021	Rule Changes The `Detect outbound connections to common miner pool ports` rule: Add additional known miner domains. Add additional exception fields to the following rules to aid customization: `Modify Shell Configuration File` `Write below monitored dir` `Write below etc` `Write below root` `Write below rpm database` `Launch Privileged Container` `Launch Sensitive Mount Container` `Terminal shell in container` `System procs network activity` `Launch Suspicious Network Tool in Container` `Set Setuid or Setgid bit` `Launch Remote File Copy Tools in Container` `The docker client is executed in a container` `Disallowed K8s User` `Create Privileged Pod` `Create Sensitive Mount Pod` `Create HostNetwork Pod` `Attach/Exec Pod` `Pod Created in Kube Namespace` `Service Account Created in Kube Namespace` `ClusterRole With Wildcard Created` `K8s Secret Created` `K8s Secret Deleted` The `Change thread namespace` rule: Add an additional exception for the Sysdig agent. The `Pod created in the Kube Namespace` rule: Allow users starting with "system:" to create pods in the `kube-system/kube-public` namespaces. The `Read sensitive file untrusted` rule: Allow puppet to run scripts that might read sensitive files. The `Write below root` rule: Add an additional way to detect Cassandra to allow writes to `/root/.cassandra`. The `Change thread namespace` rule: Allow Weaveworks Kured (Kubernetes Reboot Daemon) to change thread namespaces.	0.15.0
May 17, 2021	Rule Changes Add `rpmdb_verify` as an RPM Package Management program. This affects the following rules: `Update Package Repository` `Write below binary dir` `Write below monitored dir` `Write below etc` `Read sensitive file untrusted` `Modify binary dirs` `Mkdir binary dirs` `Run shell untrusted` `Package management process ran inside container` Write below `etc`: Add `haproxy-ingress` as a program that can write below `/etc/haproxy`. Change thread namespace: Allow images ending with `/ext-cilium-startup-script` to change namespaces. Launch Suspicious Network Tool in Container: Allow images ending with `sysdig/cassandra` and `bitnami/zookeeper` to run network tools inside containers. Set `setuid` or `setgid` bit: Allow the images in the `sysdig_commercial_images` list to include applications with `setuid/setgid` binaries.	0.14.0
May 05, 2021	Rule Changes Add a macro to allow backward compatibility for using older pre-exceptions rules content.	0.13.2
May 05, 2021	Rule Changes Remove the `aws_cloudtrail` rule named `Create Internet-facing AWS Public Facing Load Balancer without Required Tags` from the previous release that uses features yet to be released.	0.13.1
May 04, 2021	Added the `Launch Root User Container` rule to the `Notable Container Activity` policy. Rule Changes All Rules with the source, `aws_cloudtrail`: Switch from using `jevt.value[/path]` to `aws.xxx` to extract information out of `aws_cloudtrail` events. A new rule, Launch Root User Container , has been added. It matches when a container is started and is configured to run as root. This works for Docker and CRI-O container runtimes, but not for Openshift 4.x, which does not make the necessary information available. Macro `spawned_process`: Consider only successful executables. For example, where the return value is 0. This affects the following rules: `Schedule Cron Jobs` `DB program spawned process` `Run shell untrusted` `System user interactive` `Terminal shell in container` `Program run with disallowed http proxy env` `User mgmt binaries` `Launch Package Management Process in Container` `Netcat Remote Code Execution in Container` `Launch Suspicious Network Tool in Container` `Launch Suspicious Network Tool on Host` `Search Private Keys or Passwords` `Remove Bulk Data from Disk` `Delete Bash History` `Launch Remote File Copy Tools in Container` `Detect crypto miners using the Stratum protocol` `The docker client is executed in a container` `Linux Kernel Module Injection Detected` `Container Run as Root User` This could affect the following rules if they are triggered based on an `exec()` process rather than a container-started event. `Launch Privileged Container` `Launch Sensitive Mount Container` `Launch Disallowed Container` `Launch Root User Container`	0.13.0
April 09, 2021	Rule Changes Restore several old macros and lists that are no longer used by any of the default rules, but might be used by some users' local rules.	0.12.2
April 05, 2021	Fixed a defect that could prevent deploying rules to several older Sysdig backend versions.	0.12.1
March 31, 2021	Rule Changes Added new versions of `falco_rules.yaml/k8s_audit_rules.yaml` that uses exceptions instead of collections of macros and long condition strings. The rules coverage should be identical to older versions.	0.12.0
March 19, 2021	Fixed minor problems with the rules installation script.	0.11.1
March 11, 2021	Rule Changes Added 164 rules that detect suspicious/anomalous/notable behavior from a stream of AWS CloudTrail events. This requires a Sysdig backend that supports policy types and running the Cloud Connector for Secure for cloud.. For a full list of rules for different AWS services, see CloudTrail Rules for Secure for Cloud. Default Policy Changes The new policy, Sysdig AWS Best Practices, includes 41 of the above rules that Sysdig recommends using for the AWS environments.	0.11.0
February 9, 2021	Rule Changes rule `Change thread namespace:` Let cilium nsenter rule `Change thread namespace:` Let dynatrace setns rule `Change thread namespace:` Let sysdig agent setns (the process name was changed recently) rule `Clear Log Activities:` Allow fluentd to write/access log files in a container macro `exe_running_docker_save:` Added support for Crio setting up containers. This affects several rules including: Modify Shell Configuration File Update Package Repository Write below binary dir Write below monitored dir Write below etc Write below root Write below rpm database Modify binary dirs mkdir binary dirs Set Setuid or Setgid bit Create Hidden Files or Directories rule `Launch Package Management Process in Container:` Let sysdig node-image-analyzer run rpm	0.10.5

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