MD5: 459bb08549657c286f9e96744fe6ddc9
SHA1: 0684a42e1b880f489943e2c478f1879e1fe86cf7
SHA256: b93e68e78cbbf2a753e78bdf35de486aef8b727147bb55677aab82e76dd2a5f8
SSDeep: 24576:/1/aGLDCM4D8ayGMZo8/1AJu0IYYwt/R72q5A WbaNzAcOfv4QyjTAtuxWhF/wu6:wD8ayGMZo4AJu0IYYwt3A WbaNzAcOf4
Size: 1010921 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: no data
Analyzed on: Windows7 SP1 32-bit

Summary:

Trojan. A program that appears to do one thing but actually does another (a.k.a. Trojan Horse).

Payload

No specific payload has been found.

Process activity

The Trojan creates the following process(es):

wouig.exe:1816
%original file name%.exe:140

The Trojan injects its code into the following process(es):
No processes have been created.

Mutexes

The following mutexes were created/opened:
No objects were found.

File activity

The process wouig.exe:1816 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

C:\original .exe (1963131 bytes)
C:\config.sys .exe (1963131 bytes)
C:\bootmgr .exe (1963131 bytes)
C:\Boot .exe (1963131 bytes)
C:\Windows .exe (1963131 bytes)
C:\ProgramData .exe (1963131 bytes)
C:\$Recycle.Bin .exe (1963131 bytes)
C:\BOOTSECT.BAK .exe (1963131 bytes)
%Documents and Settings% .exe (1963131 bytes)
C:\totalcmd .exe (1963131 bytes)
C:\Users .exe (1963131 bytes)
C:\XELDZ .exe (1963131 bytes)
C:\autoexec.bat .exe (1963131 bytes)
C:\%original file name%.exe .exe (1963131 bytes)
C:\System Volume Information .exe (1963131 bytes)
C:\marker .exe (1963131 bytes)
%Program Files% .exe (1963131 bytes)
C:\pagefile.sys .exe (1963131 bytes)

The Trojan deletes the following file(s):

C:\Mirat (0 bytes)
C:\Mirav (0 bytes)
C:\Miraw (0 bytes)
C:\Miraq (0 bytes)
C:\Mirar (0 bytes)
C:\Miras (0 bytes)
C:\Miram (0 bytes)
C:\Miran (0 bytes)
C:\Mirai (0 bytes)
C:\Mirak (0 bytes)
C:\Mirag (0 bytes)
C:\Mirac (0 bytes)

The process %original file name%.exe:140 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

C:\ProgramData\Saaaalamm\Mira.h (960208 bytes)
C:\ProgramData\wouig.exe (1019423 bytes)

Registry activity

The process wouig.exe:1816 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
To automatically run itself each time Windows is booted, the Trojan adds the following link to its file to the system registry autorun key:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"Microsoft® Windows® Operating System" = "C:\ProgramData\wouig.exe"

Dropped PE files

HOSTS file anomalies

No changes have been detected.

Rootkit activity

No anomalies have been detected.

Propagation

VersionInfo

Company Name: Microsoft Corporation
Product Name: Mira Malware
Product Version: 1.0.0.155
Legal Copyright: Microsoft Corporation
Legal Trademarks:
Original Filename:
Internal Name:
File Version: 1.0.0.155
File Description: Mira Malware
Comments:
Language: English (United States)

PE Sections

Dropped from:

2291ef522c5abb39601b0a4bb382ba4b

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

URLs

No activity has been detected.

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

Web Traffic was not found.

The Trojan connects to the servers at the folowing location(s):

.text

`.data

.rdata

@.bss

.idata

C:\ProgramData\wouig.exe

Software\Microsoft\Windows\CurrentVersion\Run

Windows

Operating System

%H:%M:%S

%m/%d/%y

-0123456789

%s:%u: failed assertion `%s'

RegCloseKey

RegOpenKeyA

ADVAPI32.DLL

KERNEL32.dll

msvcrt.dll

SHELL32.DLL

SearchProtocolHost.exe_2468:

.text

`.data

.rsrc

@.reloc

ADVAPI32.dll

ntdll.DLL

KERNEL32.dll

msvcrt.dll

USER32.dll

ole32.dll

OLEAUT32.dll

TQUERY.DLL

MSSHooks.dll

IMM32.dll

SHLWAPI.dll

SrchCollatorCatalogInfo

SrchDSSLogin

SrchDSSPortManager

SrchPHHttp

SrchIndexerQuery

SrchIndexerProperties

SrchIndexerPlugin

SrchIndexerClient

SrchIndexerSchema

Msidle.dll

Failed to get REGKEY_FLTRDMN_MS_TO_IDLE, using default

pfps->psProperty.ulKind is LPWSTR but psProperty.lpwstr is NULL or empty

d:\win7sp1_gdr\enduser\mssearch2\common\utils\crchash.cxx

d:\win7sp1_gdr\enduser\mssearch2\search\search\gather\fltrdmn\fltrdaemon.cxx

d:\win7sp1_gdr\enduser\mssearch2\search\common\include\secutil.hxx

d:\win7sp1_gdr\enduser\mssearch2\common\tracer\tracerhelpers.h

d:\win7sp1_gdr\enduser\mssearch2\common\tracer\mutex.cpp

d:\win7sp1_gdr\enduser\mssearch2\common\include\srchxcpt.hxx

RegDeleteKeyW

RegDeleteKeyExW

8%uiP

Invalid parameter passed to C runtime function.

d:\win7sp1_gdr\enduser\mssearch2\common\tracer\tracersecutil.h

d:\win7sp1_gdr\enduser\mssearch2\common\tracer\tracmain.cpp

-d-d-d-d-d-d-d-%d

d:\win7sp1_gdr\enduser\mssearch2\common\tracer\tracmain.h

</MSG></TRC>

<MSG>

<ERR> 0xx=

<LOC> %s(%d) </LOC>

tid="0x%x"

pid="0x%x"

tagname="%s"

tagid="0x%x"

el="0x%x"

time="d/d/d d:d:d.d"

logname="%s"

d:\win7sp1_gdr\enduser\mssearch2\common\tracer\sysimprs.cxx

SHELL32.dll

PROPSYS.dll

ntdll.dll

RegCloseKey

RegCreateKeyExW

RegOpenKeyExW

RegQueryInfoKeyW

RegEnumKeyExW

ReportEventW

_amsg_exit

MsgWaitForMultipleObjects

SearchProtocolHost.pdb

2 2(20282|2

4%5S5

Software\Microsoft\Windows Search

https

kernel32.dll

msTracer.dll

msfte.dll

lX-X-X-XX-XXXXXX

SOFTWARE\Microsoft\Windows Search

tquery.dll

%s\%s

HKEY_CLASSES_ROOT

HKEY_CURRENT_USER

HKEY_LOCAL_MACHINE

HKEY_USERS

HKEY_PERFORMANCE_DATA

HKEY_DYN_DATA

HKEY_CURRENT_CONFIG

Windows Search Service

<Exception><HR>0xx</HR><eip>%p</eip><module>%S</module><line>%d</line></Exception>

advapi32.dll

WAPI-MS-Win-Core-LocalRegistry-L1-1-0.dll

winhttp.dll

Software\Microsoft\Windows Search\Tracing

Software\Microsoft\Windows Search\Tracing\EventThrottleLastReported

Software\Microsoft\Windows Search\Tracing\EventThrottleState

<MSG>

<LOC> %S(%d) </LOC>

tagname="%S"

logname="%S"

Software\Microsoft\Active Setup\Installed Components\{89820200-ECBD-11CF-8B85-00AA005B4383}

.\%s.mui

.\%s\%s.mui

%s\%s.mui

%s\%s\%s.mui

Microsoft Windows Search Protocol Host

7.00.7601.17610 (win7sp1_gdr.110503-1502)

SearchProtocolHost.exe

Windows

7.00.7601.17610

SearchFilterHost.exe_2416:

.text

`.data

.rsrc

@.reloc

ADVAPI32.dll

ntdll.DLL

KERNEL32.dll

msvcrt.dll

USER32.dll

ole32.dll

OLEAUT32.dll

TQUERY.DLL

IMM32.dll

MSSHooks.dll

mscoree.dll

SHLWAPI.dll

d:\win7sp1_gdr\enduser\mssearch2\search\search\gather\fltrhost\bufstm.cxx

d:\win7sp1_gdr\enduser\mssearch2\common\tracer\mutex.cpp

RegDeleteKeyW

RegDeleteKeyExW

8%uiP

d:\win7sp1_gdr\enduser\mssearch2\common\include\srchxcpt.hxx

Invalid parameter passed to C runtime function.

d:\win7sp1_gdr\enduser\mssearch2\common\tracer\tracersecutil.h

d:\win7sp1_gdr\enduser\mssearch2\common\tracer\tracmain.cpp

-d-d-d-d-d-d-d-%d

d:\win7sp1_gdr\enduser\mssearch2\common\tracer\tracmain.h

d:\win7sp1_gdr\enduser\mssearch2\common\tracer\sysimprs.cxx

RegCloseKey

RegCreateKeyExW

RegOpenKeyExW

RegQueryInfoKeyW

RegEnumKeyExW

ReportEventW

_amsg_exit

SearchFilterHost.pdb

version="5.1.0.0"

name="Microsoft.Windows.Search.MSSFH"

<requestedExecutionLevel

3 3(30383|3

kernel32.dll

Software\Microsoft\Windows Search

SOFTWARE\Microsoft\Windows Search

HKEY_CLASSES_ROOT

HKEY_CURRENT_USER

HKEY_LOCAL_MACHINE

HKEY_USERS

HKEY_PERFORMANCE_DATA

HKEY_DYN_DATA

HKEY_CURRENT_CONFIG

Windows Search Service

tquery.dll

advapi32.dll

API-MS-Win-Core-LocalRegistry-L1-1-0.dll

<Exception><HR>0xx</HR><eip>%p</eip><module>%S</module><line>%d</line></Exception>

Software\Microsoft\Windows Search\Tracing

Software\Microsoft\Windows Search\Tracing\EventThrottleLastReported

Software\Microsoft\Windows Search\Tracing\EventThrottleState

<MSG>

<ERR> 0xx=

<LOC> %S(%d) </LOC>

tid="0x%x"

pid="0x%x"

tagname="%S"

tagid="0x%x"

el="0x%x"

time="d/d/d d:d:d.d"

logname="%S"

</MSG></TRC>

Software\Microsoft\Active Setup\Installed Components\{89820200-ECBD-11CF-8B85-00AA005B4383}

.\%s.mui

.\%s\%s.mui

%s\%s.mui

%s\%s\%s.mui

%s\%s

winhttp.dll

Microsoft Windows Search Filter Host

7.00.7601.17610 (win7sp1_gdr.110503-1502)

SearchFilterHost.exe

Windows

7.00.7601.17610

WMIADAP.EXE_2424:

.text

`.data

.rsrc

@.reloc

ADVAPI32.dll

ntdll.DLL

KERNEL32.dll

USER32.dll

msvcrt.dll

wbemcomn.dll

OLEAUT32.dll

ole32.dll

loadperf.dll

FEw.AEw]FEw

`.bik

PSSSSSSh

WMIADAP.exe

?CloseSubKey@CRegistry@@AAEXXZ

?CreateOpen@CRegistry@@QAEJPAUHKEY__@@PBGPAGKKPAU_SECURITY_ATTRIBUTES@@PAK@Z

?DeleteCurrentKeyValue@CRegistry@@QAEKPAUHKEY__@@PBG@Z

?DeleteCurrentKeyValue@CRegistry@@QAEKPBG@Z

?DeleteKey@CRegistry@@QAEJPAVCHString@@@Z

?GetCurrentBinaryKeyValue@CRegistry@@QAEKPAUHKEY__@@PBGPAEPAK@Z

?GetCurrentBinaryKeyValue@CRegistry@@QAEKPBGAAVCHString@@@Z

?GetCurrentBinaryKeyValue@CRegistry@@QAEKPBGPAEPAK@Z

?GetCurrentKeyValue@CRegistry@@QAEKPAUHKEY__@@PBGAAK@Z

?GetCurrentKeyValue@CRegistry@@QAEKPAUHKEY__@@PBGAAVCHString@@@Z

?GetCurrentKeyValue@CRegistry@@QAEKPAUHKEY__@@PBGAAVCHStringArray@@@Z

?GetCurrentKeyValue@CRegistry@@QAEKPBGAAK@Z

?GetCurrentKeyValue@CRegistry@@QAEKPBGAAVCHString@@@Z

?GetCurrentKeyValue@CRegistry@@QAEKPBGAAVCHStringArray@@@Z

?GetCurrentRawKeyValue@CRegistry@@AAEKPAUHKEY__@@PBGPAXPAK3@Z

?GetCurrentRawSubKeyValue@CRegistry@@AAEKPBGPAXPAK2@Z

?GetCurrentSubKeyCount@CRegistry@@QAEKXZ

?GetCurrentSubKeyName@CRegistry@@QAEKAAVCHString@@@Z

?GetCurrentSubKeyPath@CRegistry@@QAEKAAVCHString@@@Z

?GetCurrentSubKeyValue@CRegistry@@QAEKPBGAAK@Z

?GetCurrentSubKeyValue@CRegistry@@QAEKPBGAAVCHString@@@Z

?GetCurrentSubKeyValue@CRegistry@@QAEKPBGPAXPAK@Z

?GetLongestSubKeySize@CRegistry@@QAEKXZ

?GethKey@CRegistry@@QAEPAUHKEY__@@XZ

?LocateKeyByNameOrValueName@CRegistrySearch@@QAEHPAUHKEY__@@PBG1PAPBGKAAVCHString@@3@Z

?NextSubKey@CRegistry@@QAEKXZ

?Open@CRegistry@@QAEJPAUHKEY__@@PBGK@Z

?OpenAndEnumerateSubKeys@CRegistry@@QAEJPAUHKEY__@@PBGK@Z

?OpenLocalMachineKeyAndReadValue@CRegistry@@QAEJPBG0AAVCHString@@@Z

?OpenSubKey@CRegistry@@AAEKXZ

?RewindSubKeys@CRegistry@@QAEXXZ

?SearchAndBuildList@CRegistrySearch@@QAEHVCHString@@AAVCHPtrArray@@00HPAUHKEY__@@@Z

?SetCurrentKeyValue@CRegistry@@QAEKPAUHKEY__@@PBGAAK@Z

?SetCurrentKeyValue@CRegistry@@QAEKPAUHKEY__@@PBGAAVCHString@@@Z

?SetCurrentKeyValue@CRegistry@@QAEKPAUHKEY__@@PBGAAVCHStringArray@@@Z

?SetCurrentKeyValue@CRegistry@@QAEKPBGAAK@Z

?SetCurrentKeyValue@CRegistry@@QAEKPBGAAVCHString@@@Z

?SetCurrentKeyValue@CRegistry@@QAEKPBGAAVCHStringArray@@@Z

?SetCurrentKeyValueExpand@CRegistry@@QAEKPAUHKEY__@@PBGAAVCHString@@@Z

?myRegCreateKeyEx@CRegistry@@AAEJPAUHKEY__@@PBGKPAGKKQAU_SECURITY_ATTRIBUTES@@PAPAU2@PAK@Z

?myRegDeleteKey@CRegistry@@AAEJPAUHKEY__@@PBG@Z

?myRegDeleteValue@CRegistry@@AAEJPAUHKEY__@@PBG@Z

?myRegEnumKey@CRegistry@@AAEJPAUHKEY__@@KPAGK@Z

?myRegEnumValue@CRegistry@@AAEJPAUHKEY__@@KPAGPAK22PAE2@Z

?myRegOpenKeyEx@CRegistry@@AAEJPAUHKEY__@@PBGKKPAPAU2@@Z

?myRegQueryInfoKey@CRegistry@@AAEJPAUHKEY__@@PAGPAK22222222PAU_FILETIME@@@Z

?myRegQueryValueEx@CRegistry@@AAEJPAUHKEY__@@PBGPAK2PAE2@Z

?myRegSetValueEx@CRegistry@@AAEJPAUHKEY__@@PBGKKPBEK@Z

QSSh0

Invalid parameter passed to C runtime function.

ntdll.dll

RegCloseKey

RegOpenKeyExW

RegCreateKeyExW

RegEnumKeyW

RegDeleteKeyW

RegQueryInfoKeyW

_amsg_exit

_acmdln

?Report@CEventLog@@QAEHGKVCInsertionString@@000000000@Z

WMIADAP.pdb

<assemblyIdentity version="1.0.0.0"

<requestedExecutionLevel level="asInvoker" uiAccess="false"/>

5m6z6

%s_x

%s_x_

Global\WMI_SysEvent_Semaphore_%d

WinMSGWMIADAP

\\.\root\cimv2

WMIADAP Msg window

\\.\root\wmi

PSAPI.DLL

x=%s

Describes all the counters supported via WMI Hi-Performance providers

_new.ini

xx %s%s.ini

xx %s

\\.\ROOT\cimv2:__ClassProviderRegistration.provider="\\\\.\\root\\cimv2:__Win32Provider.Name=\"WmiPerfClass\""

WmiApRes.dll

%s\%s

6.1.7600.16385 (win7_rtm.090713-1255)

wmicookr.dll

Windows

Operating System

6.1.7600.16385

Remove it with Ad-Aware

1. Click (here) to download and install Ad-Aware Free Antivirus.
2. Update the definition files.
3. Run a full scan of your computer.

Manual removal*

1. Terminate malicious process(es) (How to End a Process With the Task Manager):
   

   wouig.exe:1816
   %original file name%.exe:140

2. Delete the original Trojan file.
   
3. Delete or disinfect the following files created/modified by the Trojan:
   

   C:\original .exe (1963131 bytes)
   C:\config.sys .exe (1963131 bytes)
   C:\bootmgr .exe (1963131 bytes)
   C:\Boot .exe (1963131 bytes)
   C:\Windows .exe (1963131 bytes)
   C:\ProgramData .exe (1963131 bytes)
   C:\$Recycle.Bin .exe (1963131 bytes)
   C:\BOOTSECT.BAK .exe (1963131 bytes)
   %Documents and Settings% .exe (1963131 bytes)
   C:\totalcmd .exe (1963131 bytes)
   C:\Users .exe (1963131 bytes)
   C:\XELDZ .exe (1963131 bytes)
   C:\autoexec.bat .exe (1963131 bytes)
   C:\%original file name%.exe .exe (1963131 bytes)
   C:\System Volume Information .exe (1963131 bytes)
   C:\marker .exe (1963131 bytes)
   %Program Files% .exe (1963131 bytes)
   C:\pagefile.sys .exe (1963131 bytes)
   C:\ProgramData\Saaaalamm\Mira.h (960208 bytes)
   C:\ProgramData\wouig.exe (1019423 bytes)

4. Delete the following value(s) in the autorun key (How to Work with System Registry):
   

   [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   "Microsoft® Windows® Operating System" = "C:\ProgramData\wouig.exe"

5. Reboot the computer.
   

*Manual removal may cause unexpected system behaviour and should be performed at your own risk.