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Fwd: TA18-145A: Cyber Actors Target Home and Office Routers and Networked Devices Worldwide

2018-05-25 by: "Alex Smith (K4RNT)"
From: "Alex Smith (K4RNT)" 
For your information, if you use a SOHO or home router, it might be
infected with the VPN Filter malware. Reboot your router to clear it out.

" 'With the first link, the chain is forged. The first speech censured, the
first thought forbidden, the first freedom denied, chains us all
irrevocably.' Those words were uttered by Judge Aaron Satie as wisdom and
warning... The first time any man's freedom is trodden on, we=E2=80=99re al=
damaged." - Jean-Luc Picard, quoting Judge Aaron Satie, Star Trek: TNG
episode "The Drumhead"
- Alex Smith
- Kent, Washington (metropolitan Seattle area)

---------- Forwarded message ----------
From: US-CERT 
Date: Fri, May 25, 2018 at 2:12 PM
Subject: TA18-145A: Cyber Actors Target Home and Office Routers and
Networked Devices Worldwide
To: shadowhunter@gmail.com

[image: U.S. Department of Homeland Security US-CERT]

National Cyber Awareness System:

TA18-145A: Cyber Actors Target Home and Office Routers and Networked
Devices Worldwide 
05/25/2018 02:22 PM EDT

Original release date: May 25, 2018
Systems Affected

   - Small office/home office (SOHO) routers
   - Networked devices
   - Network-attached storage (NAS) devices


Cybersecurity researchers have identified that foreign cyber actors have
compromised hundreds of thousands of home and office routers and other
networked devices worldwide [1]
The actors used VPNFilter malware to target small office/home office (SOHO)
routers. VPNFilter malware uses modular functionality to collect
intelligence, exploit local area network (LAN) devices, and block
actor-configurable network traffic. Specific characteristics of VPNFilter
have only been observed in the BlackEnergy malware, specifically
BlackEnergy versions 2 and 3.

The Department of Homeland Security (DHS) and the Federal Bureau of
Investigation (FBI) recommend that owners of SOHO routers power cycle
(reboot) SOHO routers and networked devices to temporarily disrupt the

DHS and FBI encourage SOHO router owners to report information concerning
suspicious or criminal activity to their local FBI field office or the
FBI=E2=80=99s 24/7 Cyber Watch (CyWatch). Field office contacts can be iden=
at www.fbi.gov/contact-us/field. CyWatch can be contacted by phone at
855-292-3937 or by email at CyWatch@fbi.gov. Each submitted report should
include as much informaiton as possible, specifically the date, time,
location, type of activity, number of people, the type of equipment used
for the activity, the name of the submitting company or organization, and a
designated point of contact.

The size and scope of this infrastructure impacted by VPNFilter malware is
significant. The persistent VPNFilter malware linked to this infrastructure
targets a variety of SOHO routers and network-attached storage devices. The
initial exploit vector for this malware is currently unknown.

The malware uses a modular functionality on SOHO routers to collect
intelligence, exploit LAN devices, and block actor-configurable network
traffic. The malware can render a device inoperable, and has destructive
functionality across routers, network-attached storage devices, and central
processing unit (CPU) architectures running embedded Linux. The command and
control mechanism implemented by the malware uses a combination of secure
sockets layer (SSL) with client-side certificates for authentication and
TOR protocols, complicating network traffic detection and analysis.

Negative consequences of VPNFilter malware infection include:

   - temporary or permanent loss of sensitive or proprietary information,
   - disruption to regular operations,
   - financial losses incurred to restore systems and files, and
   - potential harm to an organization=E2=80=99s reputation.


DHS and FBI recommend that all SOHO router owners power cycle (reboot)
their devices to temporarily disrupt the malware.

Network device management interfaces=E2=80=94such as Telnet, SSH, Winbox, a=
HTTP=E2=80=94should be turned off for wide-area network (WAN) interfaces, a=
nd, when
enabled, secured with strong passwords and encryption. Network devices
should be upgraded to the latest available versions of firmware, which
often contain patches for vulnerabilities.

Rebooting affected devices will cause non-persistent portions of the
malware to be removed from the system. Network defenders should ensure that
first-stage malware is removed from the devices, and appropriate
network-level blocking is in place prior to rebooting affected devices.
This will ensure that second stage malware is not downloaded again after

While the paths at each stage of the malware can vary across device
platforms, processes running with the name "vpnfilter" are almost certainly
instances of the second stage malware. Terminating these processes and
removing associated processes and persistent files that execute the second
stage malware would likely remove this malware from targeted devices.

   - [1] New VPNFilter malware targets at least 500K networking devices
   - [2] Justice Department Announces Actions to Disrupt Advanced
   Persistent Threat 28 Botnet of Infected Routers and Network Storage

Revision History

   - May 25, 2018: Initial Version


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