Applicable

(Y)es / (N)o

(C)onfidentiality

(I)ntegrity

(A)vailability

RPN

(C+I+A)

(S)atisfactory

L1

M2

H3

L1

M2

H3

L1

M2

H3

(O)ther than satisfactory +##

si-3

malicious code protection

assessment objective:

Determine if the organization:

si-3(a)

employs malicious code protection mechanisms to detect and eradicate malicious code at information system:

si-3(a)[1]

entry points;

si-3(a)[2]

exit points;

si-3(b)

updates malicious code protection mechanisms whenever new releases are available in accordance with organizational configuration management policy and procedures (as identified in CM-1);

si-3(c)

si-3(c)[1]

defines a frequency for malicious code protection mechanisms to perform periodic scans of the information system;

si-3(c)[2]

defines action to be initiated by malicious  protection mechanisms in response to malicious code detection;

si-3(c)[3]

si-3(c)[3](1)

configures malicious code protection mechanisms to:

si-3(c)[3](1)[a]

perform periodic scans of the information system with the organization-defined frequency;

si-3(c)[3](1)[b]

perform real-time scans of files from external sources at endpoint and/or network entry/exit points as the files are downloaded, opened, or executed in accordance with organizational security policy;

si-3(c)[3](2)

configures malicious code protection mechanisms to do one or more of the following:

si-3(c)[3](2)[a]

block malicious code in response to malicious code detection;

si-3(c)[3](2)[b]

quarantine malicious code in response to malicious code detection;

si-3(c)[3](2)[c]

send alert to administrator in response to malicious code detection; and/or

si-3(c)[3](2)[d]

initiate organization-defined action in response to malicious code detection;

si-3(d)

si-3(d)[1]

addresses the receipt of false positives during malicious code detection and eradication; and

si-3(d)[2]

addresses the resulting potential impact on the availability of the information system.

potential assessment methods and objects:

Examine: [select from: System and information integrity policy; configuration management policy and procedures; procedures addressing malicious code protection; malicious code protection mechanisms; records of malicious code protection updates; information system design documentation; information system configuration settings and associated documentation; scan results from malicious code protection mechanisms; record of actions initiated by malicious code protection mechanisms in response to malicious code detection; information system audit records; other relevant documents or records].

Interview: [select from: System/network administrators; organizational personnel with information security responsibilities; organizational personnel installing, configuring, and/or maintaining the information system; organizational personnel with responsibility for malicious code protection; organizational personnel with configuration management responsibility].

Test: [select from: Organizational processes for employing, updating, and configuring malicious code protection mechanisms; organizational process for addressing false positives and resulting potential impact; automated mechanisms supporting and/or implementing employing, updating, and configuring malicious code protection mechanisms; automated mechanisms supporting and/or implementing malicious code scanning and subsequent actions].