Tagged articles

Masscan

8 articles · Page 1 of 1

Mar 8, 2026 · Information Security

Practical Shell Script Guide for Network Security

This guide walks through a complete penetration‑testing workflow, covering information gathering, fast port scanning, service fingerprinting, vulnerability discovery, automated scanning, exploitation, privilege escalation, lateral movement, data exfiltration, persistence techniques, log cleaning, and defensive scripting with concrete command examples for each step.

AutomationMasscanMetasploit

0 likes · 10 min read

Practical Shell Script Guide for Network Security

Efficient Ops

Aug 3, 2021 · Information Security

How a Compromised Server Was Hijacked: Inside the gpg-agentd Malware Attack

This article walks through a real‑world server breach where a disguised gpg‑agentd process was used to install backdoors, download malicious scripts, exploit Redis, and launch mass scans, and then offers concrete hardening steps to prevent similar compromises.

Malware AnalysisMasscanSSH keys

0 likes · 12 min read

How a Compromised Server Was Hijacked: Inside the gpg-agentd Malware Attack

ITPUB

Dec 4, 2020 · Information Security

Inside the gpg-agentd Malware that Hijacked an Alibaba Cloud Server

A detailed forensic walk‑through reveals how a disguised gpg-agentd binary compromised a CentOS server on Alibaba Cloud, using SSH key injection, malicious cron jobs, Redis abuse, and masscan scanning to spread and mine cryptocurrency.

Malware AnalysisMasscancron abuse

0 likes · 15 min read

Inside the gpg-agentd Malware that Hijacked an Alibaba Cloud Server

Liangxu Linux

Dec 2, 2020 · Information Security

How a Hidden gpg-agentd Process Hijacked a CentOS Server and Spread via Redis and Masscan

A detailed forensic walkthrough reveals how a compromised CentOS server was hijacked via a disguised gpg-agentd process, leveraged cron jobs to download malicious scripts, abused Redis for persistence, and used masscan for rapid scanning, followed by practical security recommendations to harden servers and Redis instances.

Cron JobsMalware AnalysisMasscan

0 likes · 14 min read

How a Hidden gpg-agentd Process Hijacked a CentOS Server and Spread via Redis and Masscan

Efficient Ops

Nov 22, 2020 · Information Security

Unmasking the gpg‑agentd Malware: From Server Freeze to Full‑Scale Attack

This article walks through a real‑world compromise of an Alibaba Cloud server, detailing how a disguised gpg‑agentd process was used to install backdoors, hijack SSH keys, exploit Redis, and launch mass scanning with malicious scripts, and it concludes with practical hardening recommendations.

Malware AnalysisMasscangpg-agentd

0 likes · 15 min read

Unmasking the gpg‑agentd Malware: From Server Freeze to Full‑Scale Attack

Programmer DD

Aug 9, 2020 · Information Security

Inside the GPG‑Agentd Malware: How a CentOS Server Was Hijacked and Spread via Redis

A compromised CentOS server was frozen by Alibaba Cloud after malicious outbound traffic; the investigation uncovered a disguised gpg‑agentd process, malicious cron jobs downloading remote scripts, a Redis exploit that injected SSH keys, and mass‑scan tools, illustrating a sophisticated multi‑stage malware infection.

CronMalware AnalysisMasscan

0 likes · 12 min read

Inside the GPG‑Agentd Malware: How a CentOS Server Was Hijacked and Spread via Redis

ITPUB

Jun 17, 2019 · Information Security

How a Hidden gpg‑agentd Malware Hijacked a CentOS Server and Spread via Redis

A detailed forensic walk‑through shows how a compromised CentOS 6 server was infected by a disguised gpg‑agentd binary, how the attacker used cron jobs to pull malicious scripts, leveraged Redis write‑file vulnerabilities and masscan to scan the Internet, and provides concrete hardening recommendations.

Malware AnalysisMasscancron persistence

0 likes · 12 min read

How a Hidden gpg‑agentd Malware Hijacked a CentOS Server and Spread via Redis

Meituan Technology Team

Oct 26, 2017 · Information Security

External Network Port Monitoring: Evolution, Methods, and Best Practices

The article chronicles Meituan‑Dianping’s external network port monitoring evolution—from slow Python‑driven Nmap scans to a fast Masscan‑Nmap pipeline and real‑time traffic‑driven DPDK module—explaining black‑box scanning, white‑box analysis, best‑practice recommendations, and the critical role of continuous port visibility for security.

MasscanNmapSecurity Operations

0 likes · 13 min read

External Network Port Monitoring: Evolution, Methods, and Best Practices