MalwareUsed by 1 actor

VELVETTAP

VELVETTAP is a custom packet-capture tool used by the Velvet Ant threat actor on compromised F5 BIG-IP devices. The provided content identifies it specifically as tooling for passive network traffic collection on those devices. It appears in reporting on Velvet Ant’s broader post-compromise operations, which also included persistence via a modified /etc/rc.local file, command decoding and execution through the custom VELVETSTING tool, and communications over reverse SSH tunnels and encrypted channels. The activity associated with Velvet Ant spans F5 BIG-IP devices, Cisco switches, and Windows hosts, but VELVETTAP is specifically described only as a packet-capture capability on compromised F5 BIG-IP systems. No specific indicators of compromise for VELVETTAP are provided in the content.

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THREAT ACTORS

Groups observed using it

1 distinct threat actor attributed by public researchers. Open in Mallory to see the full evidence chain and overlapping campaigns.

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Velvet Ant

Velvet Ant has used a custom tool, "VELVETTAP", to perform packet capture from compromised F5 BIG-IP devices.

via mitre attack websiteattack.mitre.org

MITRE ATT&CK

Techniques & procedures

1 distinct technique documented for this family, organized by ATT&CK tactic.

Credential Access

1 technique

T1040Network SniffingEvidence2

TacticsCredential Access Discovery

Velvet Ant has used a custom tool, "VELVETTAP", to perform packet capture from compromised F5 BIG-IP devices.

Discovery

1 technique

T1040Network SniffingEvidence2

TacticsCredential Access Discovery

Velvet Ant has used a custom tool, "VELVETTAP", to perform packet capture from compromised F5 BIG-IP devices.

ACTIVITY FEED

Recent activity

2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

2 SOURCESView more in app

mitre attack websiteNews

Mar 14, 2025

Velvet Ant, Group G1047 | MITRE ATT&CK®

Custom packet-capture tool used on compromised F5 BIG-IP devices for network sniffing.

mitre attack websiteNews

Mar 8, 2018

Network Sniffing, Technique T1040 - Enterprise | MITRE ATT&CK®

Custom packet-capture tool used to collect traffic from compromised F5 BIG-IP devices.

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IOC matching

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Threat actor attribution1

Named campaigns wielding this family, with evidence pinned to each claim.

Exploited vulnerabilities

CVEs this family uses for access and lateral movement.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

MITRE ATT&CK mapping1

Every documented technique, ranked by evidence weight.

Researcher chatter

Reddit, Mastodon, and CTI community discussion around this family.