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アンチウイルスに関する誤解と噂

アンチウイルスに関する誤解

ニュース

Tool.BtcMine.437

Added to the Dr.Web virus database: 2014-09-04

Virus description added: 2014-09-05

Technical Information

Malicious functions:

Creates and executes the following:

'%TEMP%\nsy1E5.tmp\ns526.tmp' 7za.exe e -y -p"27y7lZZ0kO12" "general.7z"
'%TEMP%\nsy1E5.tmp\ns2C08.tmp' 7za.exe e -y -p"27y7lZZ0kO12" "cpu.7z"
'%TEMP%\nsy1E5.tmp\ns5164.tmp' SchTasks /create /tn "Math Problem Solver Optimize" /tr "\"<LS_APPDATA>\Math Problem Solver\Optimize.exe\" /path=\"Software\Math Problem Solver\"" /ru "FFPXOMEV" /sc "ONLOGON" /DELAY "0002:00" /rl HIGHEST
'%TEMP%\nsy1E5.tmp\nsA01C.tmp' WMIC csproduct Get Name /FORMAT:textvaluelist.xsl
'%TEMP%\nsy1E5.tmp\ns984.tmp' WMIC csproduct Get UUID /FORMAT:textvaluelist.xsl
'%TEMP%\nsy1E5.tmp\ns2EC1.tmp' WMIC diskdrive Get SerialNumber /FORMAT:textvaluelist.xsl
'%TEMP%\nsy1E5.tmp\ns541D.tmp' WMIC bios Get SerialNumber /FORMAT:textvaluelist.xsl

Executes the following:

'<SYSTEM32>\conhost.exe' /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
'<SYSTEM32>\Wbem\WMIC.exe' csproduct Get Name /FORMAT:textvaluelist.xsl
'<SYSTEM32>\conhost.exe' e -y -p"27y7lZZ0kO12" "general.7z"
'<SYSTEM32>\conhost.exe' -CHANGE -hibernate-timeout-ac 0
'<SYSTEM32>\conhost.exe' /create /tn "Math Problem Solver Optimize" /tr "\"<LS_APPDATA>\Math Problem Solver\Optimize.exe\" /path=\"Software\Math Problem Solver\"" /ru "FFPXOMEV" /sc "ONLOGON" /DELAY "0002:00" /rl HIGHEST
'<SYSTEM32>\Wbem\WMIC.exe' diskdrive Get SerialNumber /FORMAT:textvaluelist.xsl
'<SYSTEM32>\Wbem\WMIC.exe' csproduct Get UUID /FORMAT:textvaluelist.xsl
'<SYSTEM32>\Wbem\WMIC.exe' bios Get SerialNumber /FORMAT:textvaluelist.xsl
'<SYSTEM32>\Wbem\WMIC.exe' --pid=0xb28 --log --managed
'<SYSTEM32>\Wbem\WMIC.exe' bios Get Version /FORMAT:textvaluelist.xsl

Modifies file system :

Creates the following files:

<LS_APPDATA>\Math Problem Solver\cpu\7za.exe
<LS_APPDATA>\Math Problem Solver\cpu\cpu.7z
<LS_APPDATA>\Math Problem Solver\cpu\Solve.exe
%TEMP%\nsy1E5.tmp\ns2C08.tmp
<LS_APPDATA>\Math Problem Solver\Optimize.exe
%TEMP%\nsy1E5.tmp\ns526.tmp
<LS_APPDATA>\Math Problem Solver\7za.exe
<LS_APPDATA>\Math Problem Solver\help.ico
<LS_APPDATA>\Math Problem Solver\coin.ico
<LS_APPDATA>\Math Problem Solver\cpu\libcurl-4.dll
%TEMP%\nsy1E5.tmp\power.bat
<SYSTEM32>\Tasks\Math Problem Solver Optimize
<LS_APPDATA>\Math Problem Solver\Uninstall.exe
%TEMP%\nsy1E5.tmp\ns7578.tmp
%TEMP%\nsy1E5.tmp\ns5164.tmp
<Auxiliary element>
<LS_APPDATA>\Math Problem Solver\cpu\pthreadGC2.dll
<SYSTEM32>\Tasks\Math Problem Solver CPU
%TEMP%\nsy1E5.tmp\TaskHelper.dll
%TEMP%\nsy1E5.tmp\nsExec.dll
%WINDIR%\ServiceProfiles\NetworkService\AppData\Local\Temp\Cab85B.tmp
%TEMP%\nsy1E5.tmp\ns984.tmp
%WINDIR%\ServiceProfiles\NetworkService\AppData\Local\Temp\Cab83A.tmp
%TEMP%\nsy1E5.tmp\System.dll
%TEMP%\nsy1D5.tmp
%TEMP%\nsy1E5.tmp\HwInfo.dll
%TEMP%\nsy1E5.tmp\CPUFeatures.dll
%TEMP%\nsy1E5.tmp\ns2EC1.tmp
%TEMP%\nsy1E5.tmp\blowfish.dll
%TEMP%\nsy1E5.tmp\nsA01C.tmp
<LS_APPDATA>\Math Problem Solver\general.7z
%TEMP%\nsy1E5.tmp\inetc.dll
%WINDIR%\ServiceProfiles\NetworkService\AppData\Local\Temp\Cab805B.tmp
%TEMP%\nsy1E5.tmp\ns7BAA.tmp
%TEMP%\nsy1E5.tmp\ns541D.tmp
%WINDIR%\ServiceProfiles\NetworkService\AppData\Local\Temp\Cab803A.tmp
<APATH_DUMPS_DIR>_net\CmdDotNetDumper.log

Deletes the following files:

%TEMP%\nsy1E5.tmp\ns7578.tmp
%TEMP%\nsy1E5.tmp\power.bat
%TEMP%\nsy1E5.tmp\blowfish.dll
<LS_APPDATA>\Math Problem Solver\cpu\cpu.7z
<LS_APPDATA>\Math Problem Solver\cpu\7za.exe
%TEMP%\nsy1E5.tmp\ns5164.tmp
%TEMP%\nsy1E5.tmp\nsExec.dll
%TEMP%\nsy1E5.tmp\System.dll
%TEMP%\nsy1E5.tmp\TaskHelper.dll
%TEMP%\nsy1E5.tmp\CPUFeatures.dll
%TEMP%\nsy1E5.tmp\HwInfo.dll
%TEMP%\nsy1E5.tmp\inetc.dll
%TEMP%\nsy1E5.tmp\ns2C08.tmp
%TEMP%\nsy1E5.tmp\ns2EC1.tmp
%TEMP%\nsy1E5.tmp\ns541D.tmp
%WINDIR%\ServiceProfiles\NetworkService\AppData\Local\Temp\Cab803A.tmp
%WINDIR%\ServiceProfiles\NetworkService\AppData\Local\Temp\Cab83A.tmp
%WINDIR%\ServiceProfiles\NetworkService\AppData\Local\Temp\Cab85B.tmp
%TEMP%\nsy1E5.tmp\ns984.tmp
%TEMP%\nsy1E5.tmp\ns526.tmp
<LS_APPDATA>\Math Problem Solver\general.7z
<LS_APPDATA>\Math Problem Solver\7za.exe
%WINDIR%\ServiceProfiles\NetworkService\AppData\Local\Temp\Cab805B.tmp
%TEMP%\nsy1E5.tmp\ns7BAA.tmp
%TEMP%\nsy1E5.tmp\nsA01C.tmp

Network activity:

Connects to:

'pi##.#clickcoin.com':443
'20#.#6.232.182':80
'ct###.#indowsupdate.com':80

TCP:

HTTP GET requests:

ct###.#indowsupdate.com/msdownload/update/v3/static/trustedr/en/disallowedcertstl.cab?d5##############
20#.#6.232.182/pki/crl/products/WinPCA.crl
20#.#6.232.182/pki/crl/products/CodeSignPCA.crl
ct###.#indowsupdate.com/msdownload/update/v3/static/trustedr/en/disallowedcertstl.cab?64##############
20#.#6.232.182/pki/crl/products/microsoftrootcert.crl
20#.#6.232.182/pki/mscorp/crl/mswww(6).crl

UDP:

DNS ASK pi##.#clickcoin.com
DNS ASK dn#.##ftncsi.com
DNS ASK ms###.microsoft.com
DNS ASK ct###.#indowsupdate.com
DNS ASK crl.microsoft.com

Curing recommendations

If the operating system (OS) can be loaded (either normally or in safe mode), download Dr.Web Security Space and run a full scan of your computer and removable media you use. More about Dr.Web Security Space.
If you cannot boot the OS, change the BIOS settings to boot your system from a CD or USB drive. Download the image of the emergency system repair disk Dr.Web® LiveDisk , mount it on a USB drive or burn it to a CD/DVD. After booting up with this media, run a full scan and cure all the detected threats.

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Use Dr.Web Anti-virus for macOS to run a full scan of your Mac.

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Download on App Store

After booting up, run a full scan of all disk partitions with Dr.Web Anti-virus for Linux.

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Download by serial number

If the mobile device is operating normally, download and install Dr.Web for Android. Run a full system scan and follow recommendations to neutralize the detected threats.
If the mobile device has been locked by Android.Locker ransomware (the message on the screen tells you that you have broken some law or demands a set ransom amount; or you will see some other announcement that prevents you from using the handheld normally), do the following:
- Load your smartphone or tablet in the safe mode (depending on the operating system version and specifications of the particular mobile device involved, this procedure can be performed in various ways; seek clarification from the user guide that was shipped with the device, or contact its manufacturer);
- Once you have activated safe mode, install the Dr.Web for Android onto the infected handheld and run a full scan of the system; follow the steps recommended for neutralizing the threats that have been detected;
- Switch off your device and turn it on as normal.

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