How Trojans cause damage
Although a Trojan seems like a harmless program, it actually contains malicious code. Trojans trick your system into accepting them as useful programs. Once a Trojan is installed onto your system this program has the same privileges as you have and can:
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Delete files
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Transmit to the intruder any files you can read
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Change any files you can modify
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Install other programs with your privileges
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Execute privilege-elevation attacks—the Trojan can attempt to exploit a weakness to raise the level of access beyond the user running the Trojan. If successful, the Trojan can operate with increased privileges.
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Install viruses
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Install other Trojans
During installation and every time the Real-time Monitor runs, PC-cillin’s Trojan System Cleaner (TSC) scans your system for any Trojans on your system.
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