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If an infected ﬁle is “locked“ or in use by a system process, it will usually

only be deleted after it is released (normally after a system restart).

Deleting ﬁles in archives – In the Default cleaning mode, the entire

archive will be deleted only if it contains infected ﬁles and no clean

ﬁles. In other words, archives are not deleted if they also contain

harmless clean ﬁles. However, use caution when performing a Strict

cleaning scan – with Strict cleaning the archive will be deleted if it

contains at least one infected ﬁle, regardless of the status of other ﬁles

in the archive.

4.2 Personal ﬁrewall

The Personal ﬁrewall controls all network trac to and from the

system. This is accomplished by allowing or denying individual

network connections based on speciﬁed ﬁltering rules. It provides

protection against attacks from remote computers and enables

blocking of some services. It also provides antivirus protection

for HTTP and POP3 protocols. This functionality represents a very

important element of computer security.

4.2.1 Filtering modes

Five ﬁltering modes are available for the ESET Smart Security Personal

ﬁrewall. The behavior of the ﬁrewall changes based on the selected

mode. Filtering modes also inﬂuence the level of user interaction

required.

Filtering can be performed in one of ﬁve modes:

Automatic mode – The default mode. It is suitable for users who

prefer easy and convenient use of the ﬁrewall with no need to deﬁne

rules. Automatic mode allows all outbound trac for the given system

and blocks all new connections initiated from the network side.

Automatic mode with exceptions (user‑deﬁned rules) – In addition

to automatic mode it enables you to add custom rules.

Interactive mode – Allows you to build a tailor‑made conﬁguration

for your Personal ﬁrewall. When a communication is detected and no

rule exists which applies to that communication, a dialog window

reporting an unknown connection will be displayed. The dialog

window gives the option of allowing or denying the communication,

and the decision to allow or deny can be remembered as a new rule for

the Personal ﬁrewall. If you choose to create a new rule at this time,

all future connections of this type will be allowed or blocked according

to the rule.

Policy‑based mode – Blocks all connections which are not deﬁned by

a speciﬁc rule that allows them. This mode allows advanced users to

deﬁne rules that permit only desired and secure connections. All other

unspeciﬁed connections will be blocked by the Personal ﬁrewall.

Learning mode – Automatically creates and saves rules; this mode

is suitable for initial conﬁguration of the Personal ﬁrewall. No user

interaction is required, because ESET Smart Security saves rules

according to predeﬁned parameters. Learning mode is not secure, and

should only be used until all rules for required communications have

been created.

4.2.2 Proﬁles

Proﬁles are a tool to control the behavior of the ESET Smart Security

Personal ﬁrewall. When creating or editing a Personal ﬁrewall rule,

you can assign it to a speciﬁc proﬁle or have it apply to every proﬁle.

When you select a proﬁle, only the global rules (with no proﬁle

speciﬁed) and the rules that have been assigned to that proﬁle are

applied. You can create multiple proﬁles with dierent rules assigned

to easily alter the Personal ﬁrewall behavior.

4.2.2.1 Proﬁle management

Click the Proﬁles... button (see ﬁgure in section 4.2.1, “Filtering

modes”) to open the Firewall proﬁles window, where you can Add...,

Edit and Remove proﬁles. Please note that to Edit or Remove a

proﬁle, it must not be selected in the Selected proﬁle drop‑down

menu. When adding or editing a proﬁle, you can also deﬁne the

conditions that trigger it. The following possibilities are available:

Do not switch automatically ‑ The automatic trigger is turned o

(proﬁle must be activated manually).

When the automatic proﬁle becomes invalid and no other proﬁle

is activated automatically (default proﬁle) – When the automatic

proﬁle becomes invalid (if the computer is connected to an untrusted

network – see section 4.2.6.1, “Network authentication”) and another

proﬁle is not activated in its place (computer is not connected to

another trusted network), the Personal ﬁrewall will switch to this

proﬁle. Only one proﬁle can use this trigger.

If this zone is authenticated – This proﬁle will be triggered when

the speciﬁed zone is authenticated (see section 4.2.6.1, “Network

authentication”).

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