A technique that hostile nation-states and financially motivated ransomware groups are using to hide their operations poses a threat to critical infrastructure and national security, the National Security Agency has warned.
The technique is known as fast flux. It allows decentralized networks operated by threat actors to hide their infrastructure and survive takedown attempts that would otherwise succeed. Fast flux works by cycling through a range of IP addresses and domain names that these botnets use to connect to the Internet. In some cases, IPs and domain names change every day or two; in other cases, they change almost hourly. The constant flux complicates the task of isolating the true origin of the infrastructure.
Read more…
Source: ArsTechnica
Sign up for our Newsletter
The latest news and insights delivered right to your inbox.
Related:
- Airline DMARC Policies Lag, Opening Flyers to Email Fraud
August 19, 2020
More than half of global airlines do not have DMARC policies in place, opening their customers up to email fraud attacks, a new report found. DMARC (Domain-based Message Authentication, Reporting & Conformance) is considered the industry standard for email authentication to prevent attackers from sending mails with counterfeit addresses. It does so by authenticating the sender’s ...
- Threat Recap: Darkside, Crysis, Negasteal, Coinminer
August 19, 2020
In the past few weeks, we have spotted notable developments for different types of threats. For ransomware, a new family named Darkside surfaced, while operators behind Crysis/Dharma released a hacking toolkit. For messaging threats, a targeted email campaign was used to propagate Negasteal/Agent Tesla. Finally, for fileless threats, a coinminer was seen bundled with legitimate applications. Read ...
- US govt exposes new North Korean BLINDINGCAN backdoor malware
August 19, 2020
U.S. government agencies today published a malware analysis report exposing information on a remote access trojan (RAT) malware used by North Korean hackers in attacks targeting government contractors. The malware was identified by the Cybersecurity and Infrastructure Security Agency (CISA) and the Federal Bureau of Investigation (FBI) and is known as known BLINDINGCAN. The trojan was attributed ...
- Researchers Warn of Flaw Affecting Millions of IoT Devices
August 19, 2020
Researchers are urging connected-device manufacturers to ensure they have applied patches addressing a flaw in a module used by millions of Internet-of-Things (IoT) devices. If exploited, researchers speculated that the flaw could allow attackers to knock out a city’s electricity or even overdose a medical patient. The vulnerability exists in a widely used Cinterion module, a ...
- New FritzFrog P2P botnet has breached at least 500 enterprise, government servers
August 19, 2020
A P2P botnet newly-discovered by researchers has struck at least 500 government and enterprise SSH servers over 2020. On Wednesday, cybersecurity firm Guardicore Labs published research into FritzFrog, a peer-to-peer (P2P) botnet that has been detected by the company’s sensors since January this year. According to researcher Ophir Harpaz, FritzFrog has attempted to brute-force SSH servers belonging ...
- Phishing scams dominate the Philippines cybercrime landscape
August 19, 2020
Cybercrime in the Philippines is on a rapid rise, with phishing campaigns alone up 200% since the country went into lockdown in March In today’s highly-digitalized society, wanton cybercrimes have proven to be difficult to eradicate, and the cyberattack threat matrix just got riskier when recent quarantine and lockdown restrictions forced everyone indoors. Not only did ...