OXFORD, U.K. — 二月 25, 2020 —

 Sophos (LSE: SOPH), a global leader in next-generation cybersecurity, today published a SophosLabs report on Cloud Snooper, a sophisticated attack that uses a unique combination of techniques to allow malware on servers to communicate freely with its command and control servers through firewalls. The report deconstructs the tactics, techniques and procedures (TTPs) used in the attack. SophosLabs believes the attack was the work of a nation state motivated by espionage.

As detailed in the report, the TTPs used together include: a rootkit circumventing firewalls, a rare technique to gain access to servers disguised as normal traffic, and a backdoor payload that shares malicious code between both Windows and Linux operating systems, a known, but uncommon approach. While each individual element has been observed previously in attacks by highly-skilled adversaries, they have not been seen before in combination. Sophos expects that this package of TTPs will trickle down to the lower rungs of the cybercriminal hierarchy and be used as blueprints for new firewall attacks.

“This is the first time we have seen an attack formula that combines a bypassing technique with a multi-platform payload targeting both Windows and Linux systems. IT security teams and network administrators need to be diligent about patching all external-facing services to prevent attackers from evading cloud and firewall security policies,” said Sergei Shevchenko, threat research manager, SophosLabs. “IT security teams also need to protect against multi-platform attacks. Until now, Windows-based assets have been the typical target, but attackers are more frequently considering Linux systems because cloud services have become popular hunting grounds. It’s a matter of time before more cybercriminals adopt these techniques.”

Advice for Defenders

  • Create a full inventory of all devices connected to the network, and update all security software used on these devices
  • Ensure all external-facing services are fully patched. Cloud hosting services often provide firewall security, but this should not be a substitute for an organization’s own cloud security measures
  • Check and double check all cloud configurations. The Sophos 2020 Threat Report reveals that user misconfiguration and lack of visibility are the top causes of attacks in the cloud
  • Enable multi-factor authentication on any security dashboards or control panels used internally to prevent attackers from disabling security products during an attack
  • Remember, there is no single silver bullet for security, and a layered, defense-in-depth, next generation security model – including components designed specifically to protect data and networks in the cloud, like Sophos Cloud Optix with Sophos Intercept X for Server – is an essential best practice

For additional information, please reference this SophosLabs Uncut article.

关于 Sophos

Sophos 是全球领先的网络安全公司,凭借其人工智能驱动的平台和专家主导的服务,保护着全球 60 万家组织的安全。Sophos 根据各组织在不同安全成熟度的各式各样的需求提供支持,并与其共同成长,携手应对日益严峻的网络攻击。其解决方案结合机器学习、自动化、实时威胁情报以及来自 Sophos X-Ops 的前线真人专家的专业知识,提供 24/7 全天候高级威胁监控、侦测与响应服务。
Sophos 提供行业领先的托管式侦测与响应 (MDR) 服务,同时配备一整套全面的网络安全技术组合,包括端点、网络、电子邮件和云安全、扩展式侦测与响应 (XDR)、身份辨识威胁侦测与响应 (ITDR),以及下一代 SIEM。结合专家咨询服务,这些能力帮助组织主动降低风险,并更迅速地响应,提供力求在不断变化的威胁面前保持领先所需的可见性和可扩展性。
Sophos 通过全球合作伙伴生态系统进入市场,包括托管式服务提供商 (MSPs)、托管式安全服务提供商 (MSSPs)、经销商、分销商、市场集成商以及网络风险合作伙伴,为组织提供灵活的选择,使其能够在保护业务安全的同时建立值得信赖的合作关系。  Sophos 总部位于英国牛津。如欲了解更多信息,请访问 www.sophos.cn。