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Review network blocks from Slack

Assess the broader picture when a teammate shares a CIDR range for investigation, without manually opening another tool.

Trigger

Channel Message Received

Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.

Action

Check Block

Tool to check the reputation of all ip addresses in a cidr range. use when you need aggregated abuse data for a network block.

Why this helps

A single suspicious address can point to a wider issue, but range checks often get postponed while people switch tools.

  • Checks a CIDR range's aggregated abuse data.
  • Makes range-level review part of the Slack conversation.
  • Reduces friction when assessing a possible wider incident.

Setup

Build it in a few focused steps.

  • 1Connect Slack and Abuselpdb to Notis once in the portal.
  • 2Create an automation in the portal or ask Notis conversationally.
  • 3Give Notis one instruction to find a CIDR range in a Slack message, check it in Abuselpdb, and report the aggregate result.
  • 4Select Slack Channel Message Received as the trigger and pick a run-report channel.
  • 5Test with a real Slack message that includes a CIDR range.

Questions about this workflow

What should the Slack message contain?

Include the CIDR range you want checked, such as a network range written in CIDR notation.

Does this check each IP separately?

The Abuselpdb action checks aggregated abuse data for the range.

When this happens · Trigger

Do this · Action

Supported Triggers and Actions

Notis builds workflows that link Slack to Abuselpdb. A trigger fires from one place; an action lands in another.

Slack triggers

Abuselpdb actions

Recurring trigger

Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.

TriggerScheduled

Retrieve IP Blacklist

Tool to retrieve a list of the most reported ip addresses. use when building dynamic blocklists or threat intelligence feeds.

ActionInstant

Webhook trigger

Notis starts this workflow when an external tool or custom backend sends an HTTP request.

TriggerInstant

Bulk Report

Tool to submit multiple ip abuse reports in bulk. use when you need to report a large set of ips at once by uploading a csv file with required headers. csv must include columns: ip, categories, reportdate, comment.

ActionInstant

New Channel Created Trigger

Triggered when a new channel is created in Slack.

TriggerInstant

Check Block

Tool to check the reputation of all ip addresses in a cidr range. use when you need aggregated abuse data for a network block.

ActionInstant

Channel Message Received

Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.

TriggerInstant

Check IP Reputation

Tool to check the reputation of an ip address. use when you need to determine if an ip address has been reported for abusive activity within a specified look-back period. example: checkip(ipaddress='8.8.8.8', maxageindays=90).

ActionInstant

Direct Message Received

Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.

TriggerInstant

Clear Address Reports

Tool to remove all reports associated with a specific ip address. use when you need to purge your own abuse records after verifying control of the ip.

ActionInstant

Message Reaction Added

Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.

TriggerInstant

Get Abuse Reports

Tool to retrieve a list of abuse reports for a specific ip address. use when you need to fetch historic reports with optional filtering by status, date range, reporter, and pagination.

ActionInstant

Message Reaction Removed

Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.

TriggerInstant

Reaction Added Trigger

DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.

TriggerInstant

Connect any two apps with Notis in the middle.

Slack and Abuselpdb, or any other combination from 1,000+ integrations.

When this happens · Trigger

Do this · Action

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