SYMBOS_QZON.A
Malicious Downloader
Symbian OS
Threat Type: Trojan
Destructiveness: No
Encrypted: Yes
In the wild: Yes
OVERVIEW
This Trojan may be unknowingly downloaded by a user while visiting malicious websites. It may be manually installed by a user.
TECHNICAL DETAILS
417,540 bytes
SIS
Yes
29 Jan 2011
Arrival Details
This Trojan may be unknowingly downloaded by a user while visiting malicious websites.
It may be manually installed by a user.
Autostart Technique
This Trojan drops the following files:
- !:\sys\bin\SH_0x20029A68.dll
- !:\sys\bin\SS_0x20029A69.dll
- !:\sys\bin\SU_0x2002A2BA.exe
- !:\sys\bin\SC_0x20029A6A.dll
- !:\sys\bin\SO_0x20029A6B.dll
- !:\sys\bin\SR_0x20029A6C.dll
- !:\sys\bin\SG_0x2002A2B9.exe
- !:\sys\bin\cxian.exe
- !:\sys\bin\cll.exe
- !:\sys\bin\qzong.exe
- !:\System\Apps\SysK\Version\e41ca7c1.ver
- !:\System\Apps\SysK\Version\e41ca7c0.ver
- !:\System\Apps\SysK\data\ver.dat
- !:\System\Apps\SysK\data\License.key
- !:\sys\bin\SV_0x2002A2BB.exe
- !:\System\Apps\SysK\data\tasklist.db
- !:\System\Apps\SysK\data\smsman.db
- !:\System\Apps\SysK\data\imsi.db
- !:\System\Apps\SysK\data\License.key
- !:\mycalllist.cdb
- !:\sys\bin\EW_0x2002A2BE.exe
- c:\System\Apps\SysK\CommTone\RunSwitch.ini
- c:\System\Apps\SysK\CommTone\ComManSwitch.ini
- c:\readme.dat
- e:\System\Apps\SysK\Version\f41ca7c0.ver
- c:\private\101f875a\import\[2002A2BB].rSC
- c:\System\Apps\SysK\CommTone\ComManSwitch.ini
- c:\System\Apps\SysK\CommTone\RunSwitch.ini
Other Details
This Trojan attempts to access the following websites to download files, which are possibly malicious:
- http://4g.{BLOCKED}w.com.cn/lmg/files/systray_signed.sis
SOLUTION
8.900
Step 1
Scan your computer with your Trend Micro product to delete files detected as SYMBOS_QZON.A. 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.
Step 2
Trend Micro Mobile Security Solution
Trend Micro Mobile Security Personal Edition protects Android smartphones and tablets from malicious and Trojanized applications. The App Scanner is free and detects malicious and Trojanized apps as they are downloaded, while SmartSurfing blocks malicious websites using your device's Android browser.
Download and install the Trend Micro Mobile Security App via Google Play.
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