The PolySwarm Blog

Analyze suspicious files and URLs, at scale, millions of times per day. Get real-time threat intel from a crowdsourced network of security experts and antivirus companies competing to protect you.

PurpleFox Botnet Targeting Entities in Ukraine

Feb 16, 2024 11:44:26 AM / by The Hivemind posted in Ukraine, Threat Bulletin, Backdoor, Trojan, Botnet, rootkit, Exploit Kit, PurpleFox

0 Comments

Executive Summary

Read More

Faust Ransomware

Feb 12, 2024 1:07:27 PM / by The Hivemind posted in Threat Bulletin, Ransomware, Windows, Faust, Phobos

0 Comments

Related Families: Phobos

Executive Summary

Faust is a newly discovered variant of Phobos ransomware delivered via an office document containing a malicious VBA script.

Read More

New Zloader Variant Discovered

Feb 9, 2024 1:16:59 PM / by The Hivemind posted in Threat Bulletin, Windows, Trojan, Zloader, ZeuS, 64-bit

0 Comments

Related Families: ZeuS

Executive Summary

A new variant of the modular trojan Zloader was recently identified. The new variant has been in development since September 2023.

Read More

Cactus Ransomware

Feb 5, 2024 2:04:38 PM / by The Hivemind posted in Threat Bulletin, Critical Infrastructure, Ransomware, Energy, Cactus

0 Comments

Verticals Targeted: Energy

Executive Summary

Cactus is a ransomware family that has been active since at least March 2023 and has been gaining momentum in recent months. Cactus recently claimed an attack on Schneider Electric.

Read More

ColdRiver Using Spica Backdoor

Feb 2, 2024 1:06:16 PM / by The Hivemind posted in Russia, Threat Bulletin, Backdoor, Spica, ColdRiver

0 Comments

Executive Summary

Russia nexus threat actor group ColdRiver was recently observed using Spica backdoor in an espionage campaign.

Read More

Androxgh0st

Jan 29, 2024 1:52:50 PM / by The Hivemind posted in Threat Bulletin, Botnet, Androxgh0st, SMTP cracker

0 Comments

Executive Summary

Androxghost is a Python-based SMTP cracker that has been active in the wild since at least 2022. The FBI and CISA released a joint advisory warning of the dangers of Androxgh0st.

Read More

Volt Typhoon's KV-Botnet

Jan 22, 2024 1:38:21 PM / by The Hivemind posted in Threat Bulletin, APT, Critical Infrastructure, China, Linux, Volt Typhoon, KV-Botnet

0 Comments

Verticals Targeted: Government

Executive Summary

Volt Typhoon was observed compromising Cisco RV325 devices with KV-Botnet.

Read More

SpectralBlur MacOS Backdoor

Jan 19, 2024 2:03:16 PM / by The Hivemind posted in Threat Bulletin, Backdoor, MacOS, Stardust Chollima, SpectralBlur, KandyKorn

0 Comments

Related Families: KandyKorn

Executive Summary

SpectralBlur is a fairly unsophisticated backdoor targeting MacOS devices. It has been attributed to Stardust Chollima.

Read More

Subscribe to Email Updates

Lists by Topic

see all

Posts by Topic

See all

Recent Posts