WebMonitor Remote Access Trojan

First observed in February 2017, WebMonitor is a remote access trojan (RAT) with added virtual private network (VPN) and command and control (C2) capabilities.

Threat ID:: CC-2279
Category:
Threat Severity:: Medium
Threat Vector:
Published:: 19 April 2018 12:00 AM

Report a cyber attack: call 0300 303 5222 or email [email protected]

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Summary

First observed in February 2017, WebMonitor is a remote access trojan (RAT) with added virtual private network (VPN) and command and control (C2) capabilities.

Affected platforms

The following platforms are known to be affected:

Microsoft Windows

Microsoft Windows - All versions

Threat details

At present it is unclear how WebMonitor is delivered although there are indications on a number of dark web sites it is offered on that it is being distributed via spam campaigns.

As a RAT, WebMonitor has an extensive list of capabilities including:

Harvesting browser and mail credentials.
Stream audio and video from webcams.
Dump RAM and cache memory data to a C2 server.
Monitor and edit registry and filesystem entries.

Similarly to Qrypter, WebMonitor's creators offer their services in managing the C2 domains controlling it. This could allow attackers with far less technical ability to successfully deploy WebMonitor.

Remediation advice

To prevent and detect a trojan infection, ensure that:

Remediation steps

Type	Step
	A robust program of education and awareness training is delivered to users to ensure they don’t open attachments or follow links within unsolicited emails. All operating systems, anti-virus and other security products are kept up-to-date. All day-to-day computer activities such as email and internet are performed using non-administrative accounts. Strong password policies are in place and password reuse is discouraged. Network, proxy and firewall logs should be monitored for suspicious activity. User accounts accessed from affected devices should be reset on a clean computer.

Type

Step

A robust program of education and awareness training is delivered to users to ensure they don’t open attachments or follow links within unsolicited emails.
All operating systems, anti-virus and other security products are kept up-to-date.
All day-to-day computer activities such as email and internet are performed using non-administrative accounts.
Strong password policies are in place and password reuse is discouraged.
Network, proxy and firewall logs should be monitored for suspicious activity.
User accounts accessed from affected devices should be reset on a clean computer.

Last edited: 17 February 2020 12:57 pm