MalwareUsed by 1 actor

ProxyBot

ProxyBot is a malware/tool used by the Silence threat actor as an external proxy component. It redirects traffic from the current compromised node to a backconnect server via SOCKS4 or SOCKS5, enabling covert relay of command-and-control or operator traffic. The provided content attributes ProxyBot specifically to Silence and places its use within Silence intrusions involving spearphishing-delivered compromise, post-compromise tooling, and lateral movement in victim environments. Silence has been reported targeting banks and using capabilities such as PowerShell and script-based payload execution, Registry Run keys and Startup folder persistence, credential theft from LSASS via a Mimikatz-based utility, RDP and remote service execution for lateral movement, Nmap for internal reconnaissance, and screen/video capture to monitor bank employees. Within that tradecraft, ProxyBot’s role is to proxy communications through compromised hosts to a backconnect server over SOCKS4/SOCKS5. No standalone infection vector, platform scope, or unique indicators of compromise for ProxyBot 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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Silence

Silence has used ProxyBot, which allows the attacker to redirect traffic from the current node to the backconnect server via Sock4\Socks5.

via mitre attack websiteattack.mitre.org

MITRE ATT&CK

Techniques & procedures

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

Command and Control

1 technique

T1090.002External ProxyEvidence1

TacticCommand and Control

Silence has used ProxyBot, which allows the attacker to redirect traffic from the current node to the backconnect server via Sock4\Socks5.

ACTIVITY FEED

Recent activity

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

3 SOURCESView more in app

mitre attack websiteNews

Mar 8, 2018

Proxy: External Proxy, Sub-technique T1090.002 - Enterprise | MITRE ATT&CK®

Proxy tool that redirects traffic from an infected node to a backconnect server via SOCKS4/SOCKS5.

mitre attackNews

Jan 25, 2026

Proxy: External Proxy, Sub-technique T1090.002 - Enterprise | MITRE ATT&CK®

Proxy/tunneling utility used to redirect traffic from an infected node to a backconnect server via SOCKS4/SOCKS5, enabling relayed access and traffic obfuscation.

mitre attackNews

Mar 18, 2026

Silence, Whisper Spider, Group G0091 | MITRE ATT&CK®

A proxying component enabling traffic redirection via SOCKS4/SOCKS5 to a backconnect server, supporting pivoting and C2 routing.

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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.