A company has forbidden the use of external media within its headquarters location. A

security analyst is working on adding additional repositories to a server in the environment when

the analyst notices some odd processes running on the system. The analyst runs a command and

sees the following:

$ history

Ifconfig -a

Netstat -n

PSKILL 1788

PSKILL 914

MKDIR /tmp/1

Mount -u sda101 /TMP/1

CP /TMP/1/* `/1/

Umount /TMP/1

IS -al 1/1/

APT-GET update

APT-Get upgrade

Clear

Given this output, which of the following security issues has been discovered?

A. A misconfigured HIDS

B. A malware installation

C. A policy violation

D. The activation of a trojan