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Threat Encyclopedia

PHP_C99SHEL.SMC

ANALYSIS BY

Ardin Christopher Maglalang


ALIASES:

Backdoor:PHP/C99shell.G(Microsoft), Backdoor.PHP.C99Shell.AQ(Fsecure), Malware_fam.B(Fortinet), PHP/Rst.AK(ESET)

PLATFORM:

Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)

OVERALL RISK RATING:
DAMAGE POTENTIAL:
DISTRIBUTION POTENTIAL:
REPORTED INFECTION:
INFORMATION EXPOSURE:

  • Threat Type:Backdoor

  • Destructiveness:No

  • Encrypted: Yes

  • In the wild: Yes

OVERVIEW

TECHNICAL DETAILS

SOLUTION

Minimum Scan Engine:

9.700

FIRST VSAPI PATTERN FILE:

7.956.07

FIRST VSAPI PATTERN DATE:

08 Jul 2011

VSAPI OPR PATTERN File:

7.957.00

VSAPI OPR PATTERN Date:

08 Jul 2011

Step 1

Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.

Step 2

Scan your computer with your Trend Micro product to clean files detected as PHP_C99SHEL.SMC. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.


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