Compromised Asset Detection

Detect Compromised Assets

Detect outbound traffic probing GreyNoise sensors or talking with malicious IPs

Overview

Today's threat actors use botnets to scan for vulnerable systems and launch mass, automated attacks. To do this, compromising edge systems are critical to their operations.

Compromised devices often behave like attacker infrastructure, making it likely that a compromised device will probe the GreyNoise sensor network or interact with a known malicious IP.

GreyNoise can help you quickly spot if you have a compromised host on your network edge.

How GreyNoise Helps You
Find Your Compromised Assets

Identify Abnormal Outbound Traffic

GreyNoise detects when your internal system contacts our global sensor network or is talking with a known malicious IP, both are strong indicators of compromise.

Faster Containment

Early visibility into compromised assets allows defenders to contain hosts, halting lateral movement.

Strengthen Incident Investigations

GreyNoise helps to establish a timeline of when a compromised device began scanning and exploitation.

Stop Outbound Connections to Malicious IPs

GreyNoise provides query-based, dynamic blocklists that prevent devices on your network from outbound communications with malicious IP addresses.

How it Works

Explore Available Fields

Filter by category & search available IP fields and their uses with GreyNoise.
Categories
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NAME
Description & Use
Destination Countries Count
Count of IPs targeting specific countries. Supports geo-threat monitoring.
Stats & Aggregates
Actor Count
Aggregated count of IPs per actor. Supports statistical analysis of actors.
Stats & Aggregates
Category Count
Aggregated count of IPs per category (hosting, ISP, etc.). Highlights infrastructure trends.
Stats & Aggregates
Classification Count
Aggregated count of IPs per classification. Useful for threat landscape analysis.
Stats & Aggregates
Spoofable
Shows whether the IP completed a valid TCP handshake. If false, traffic may be spoofed or fake.
Classification
Tor
Identifies if the IP is a Tor exit node. Tor traffic often indicates obfuscation or anonymization.
IP Address Metadata
Source Country Code
ISO country code for the IP’s registration country.
IP Address Metadata
Source Country
Country where the IP is registered. Provides attacker infrastructure location context.
IP Address Metadata
Organization
Organization responsible for the IP. Adds enrichment for attribution.
IP Address Metadata
Single Destination
True if the IP only scanned one country. Suggests targeted reconnaissance.
IP Address Metadata
Region
State/province where the IP is registered. Adds sub-country geolocation context.
IP Address Metadata
RDNS
Reverse DNS value for the IP. May reveal hostnames tied to services or campaigns.
IP Address Metadata
RDNS Parent
Parent domain of the reverse DNS. Useful for clustering infrastructure.
IP Address Metadata
Mobile
Indicates if the IP belongs to a mobile/cellular network.
IP Address Metadata
Domain
Domain tied to the ASN owner. Provides higher-level ownership context.
IP Address Metadata
Destination Country Codes
ISO codes for countries targeted by scanning. Supports correlation with geo-based IOCs.
IP Address Metadata
VPN Service
Name of the VPN service associated with the IP. Useful for attribution and filtering.
IP Address Metadata
VPN
Flags if the IP belongs to a VPN provider. Suggests identity masking or evasive behavior.
IP Address Metadata
Updated At
Date/time when the tag was last updated.
Tag Information
Slug
Short identifier for the tag. Useful in queries and API lookups.
Tag Information
References
References (e.g., CVE pages, docs) supporting the tag. Provides analyst enrichment sources.
Tag Information
Recommended Block
Indicates whether IPs with this tag should be blocked. Supports automated policy decisions.
Tag Information
Name
Display name of the tag. Analyst-facing label for quick recognition.
Tag Information
Intention
Tag’s intent classification: benign, malicious, suspicious, or unknown. Adds risk context.
Tag Information
ID
Unique tag identifier.
Tag Information
CVEs
CVEs tied to the tag behavior. Critical for identifying exploitation of known vulnerabilities.
Tag Information
Description
Human-readable explanation of what the tag represents. Adds analyst context.
Tag Information
Created At
Date the tag was first added. Indicates when this behavior was first observed.
Tag Information
Tags Count
Count of IPs associated with specific tags. Helps identify common behaviors at scale.
Stats & Aggregates
Spoofable Count
Count of spoofable vs. non-spoofable IPs. Highlights volume of potentially fake traffic.
Stats & Aggregates
Source Country Count
Count of IPs originating from each country. Useful for geo-distribution of attacks.
Stats & Aggregates
Organization Count
Count of IPs linked to each organization. Useful for assessing exposure by provider.
Stats & Aggregates

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