Gen.Variant.Barys.50732_a9048cfcc3
Gen:Variant.Barys.50732 (BitDefender), Backdoor:Win32/Xtrat.AC (Microsoft), HEUR:Trojan.Win32.Generic (Kaspersky), Trojan.Win32.Generic!BT (VIPRE), Gen:Variant.Barys.50732 (B) (Emsisoft), RDN/Generic.grp (McAfee), Trojan.Gen.2 (Symantec), Trojan.MSIL.Injector (Ikarus), Gen:Variant.Barys.50732 (FSecure), Win32:Malware-gen (AVG), Win32:Malware-gen (Avast), HKTL_HPPJOAO.SM1 (TrendMicro), Gen:Variant.Barys.50732 (AdAware), Backdoor.Win32.Xtrat.FD, GenericAutorunWorm.YR, GenericInjector.YR (Lavasoft MAS)
Behaviour: Trojan, Backdoor, Worm, WormAutorun, Malware
The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.
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MD5: a9048cfcc310d5d30fe3390521e1659b
SHA1: afe3d9fbdb2923dfd8c0d67fffd594e633f43d1d
SHA256: b17721f906040149b5cc4015240b0d416121cb5b07a0226e5b5288cd0726f47f
SSDeep: 12288:o/lYcFeVnXwU8cvLd1zj90LnlUEX8PVScabBQ:QCwU5pR90LnlUEX89Babe
Size: 694844 bytes
File type: EXE
Platform: WIN32
Entropy: Not Packed
PEID: MicrosoftVisualC, NETexecutable, UPolyXv05_v6
Company: no certificate found
Created at: 2017-03-26 23:07:04
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
| Behaviour | Description |
|---|---|
| WormAutorun | A worm can spread via removable drives. It writes its executable and creates "autorun.inf" scripts on all removable drives. The autorun script will execute the Trojan's file once a user opens a drive's folder in Windows Explorer. |
Process activity
The Trojan creates the following process(es):
No processes have been created.
The Trojan injects its code into the following process(es):
%original file name%.exe:3376
%original file name%.exe:2452
svchost.exe:3132
Mutexes
The following mutexes were created/opened:
No objects were found.
File activity
The process %original file name%.exe:3376 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):
C:\Users\"%CurrentUserName%"\AppData\Roaming\Microsoft\Windows\mPKFhSbun2flJRkKlV.dat (320 bytes)
C:\Windows\System32\Win32\explorer.exe (4545 bytes)
Registry activity
The process %original file name%.exe:3376 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Tracing\a9048cfcc310d5d30fe3390521e1659b_RASAPI32]
"MaxFileSize" = "1048576"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"AutoDetect" = "1"
[HKLM\SOFTWARE\Microsoft\Tracing\a9048cfcc310d5d30fe3390521e1659b_RASAPI32]
"EnableFileTracing" = "0"
[HKLM\SOFTWARE\Microsoft\Tracing\a9048cfcc310d5d30fe3390521e1659b_RASMANCS]
"EnableFileTracing" = "0"
[HKCU\Software\mPKFhSbun2flJRkKlV]
"ServerName" = "C:\Windows\system32\Win32\explorer.exe"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"UNCAsIntranet" = "0"
[HKLM\SOFTWARE\Microsoft\Tracing\a9048cfcc310d5d30fe3390521e1659b_RASMANCS]
"ConsoleTracingMask" = "4294901760"
[HKCU\Software\mPKFhSbun2flJRkKlV]
"ServerStarted" = "01/04/2018 04:05:01"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad]
"WpadLastNetwork" = "{E549E976-C5F2-4E77-819D-55BC9B7C25BC}"
[HKCU\Software\XtremeRAT]
"Mutex" = "mPKFhSbun2flJRkKlV"
[HKLM\SOFTWARE\Microsoft\Tracing\a9048cfcc310d5d30fe3390521e1659b_RASAPI32]
"EnableConsoleTracing" = "0"
"FileTracingMask" = "4294901760"
"FileDirectory" = "%windir%\tracing"
[HKLM\SOFTWARE\Microsoft\Tracing\a9048cfcc310d5d30fe3390521e1659b_RASMANCS]
"FileDirectory" = "%windir%\tracing"
[HKLM\SOFTWARE\Microsoft\Active Setup\Installed Components\{3246PC05-8G4Q-7QUE-87CQ-LCVM52EQ0R1X}]
"StubPath" = "C:\Windows\system32\Win32\explorer.exe restart"
[HKLM\SOFTWARE\Microsoft\Tracing\a9048cfcc310d5d30fe3390521e1659b_RASMANCS]
"MaxFileSize" = "1048576"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "46 00 00 00 3D 00 00 00 09 00 00 00 00 00 00 00"
[HKLM\SOFTWARE\Microsoft\Tracing\a9048cfcc310d5d30fe3390521e1659b_RASMANCS]
"EnableConsoleTracing" = "0"
"FileTracingMask" = "4294901760"
[HKLM\SOFTWARE\Microsoft\Tracing\a9048cfcc310d5d30fe3390521e1659b_RASAPI32]
"ConsoleTracingMask" = "4294901760"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"DefaultConnectionSettings" = "46 00 00 00 0C 00 00 00 09 00 00 00 00 00 00 00"
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]
"Sonido" = "C:\Windows\system32\Win32\explorer.exe"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"google" = "C:\Windows\system32\Win32\explorer.exe"
Proxy settings are disabled:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"
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]
"Drivers" = "C:\Windows\system32\Win32\explorer.exe"
The Trojan deletes the following value(s) in system registry:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"ProxyBypass"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"ProxyBypass"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyOverride"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"IntranetName"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"IntranetName"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyServer"
"AutoConfigURL"
Dropped PE files
There are no dropped PE files.
HOSTS file anomalies
No changes have been detected.
Rootkit activity
No anomalies have been detected.
Propagation
A worm can spread via removable drives. It writes its executable and creates "autorun.inf" scripts on all removable drives. The autorun script will execute the Trojan's file once a user opens a drive's folder in Windows Explorer.
VersionInfo
Company Name: AO Kaspersky Lab
Product Name: Kaspersky Anti-Virus
Product Version: 17.0.0.643
Legal Copyright: (c) 2016 AO Kaspersky Lab. All Rights Reserved.
Legal Trademarks: Registered trademarks and service marks are the property of their respective owners
Original Filename: avpui.exe
Internal Name: avpui
File Version: 17.0.0.643
File Description: Kaspersky Anti-Virus
Comments:
Language: English (United States)
PE Sections
| Name | Virtual Address | Virtual Size | Raw Size | Entropy | Section MD5 |
|---|---|---|---|---|---|
| .text | 8192 | 633352 | 633856 | 4.48216 | d3a6e5f9a966c4747be97ed187455aba |
| .reloc | 647168 | 12 | 512 | 0.070639 | 37e96df60be926ff07031c40e7ad5483 |
| .rsrc | 655360 | 13272 | 13312 | 2.66726 | 5b7fd5e118cd6689039e088bca15dc16 |
Dropped from:
Downloaded by:
Similar by SSDeep:
Similar by Lavasoft Polymorphic Checker:
URLs
| URL | IP |
|---|---|
| lendahacker.ddns.net |  |
IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)
Traffic
The Trojan connects to the servers at the folowing location(s):
.text
`.data
.rsrc
@.reloc
msvcrt.dll
API-MS-Win-Core-ProcessThreads-L1-1-0.dll
KERNEL32.dll
NTDLL.DLL
API-MS-Win-Security-Base-L1-1-0.dll
API-MS-WIN-Service-Core-L1-1-0.dll
API-MS-WIN-Service-winsvc-L1-1-0.dll
RPCRT4.dll
ole32.dll
ntdll.dll
_amsg_exit
RegCloseKey
RegOpenKeyExW
GetProcessHeap
svchost.pdb
version="5.1.0.0"
name="Microsoft.Windows.Services.SvcHost"
<description>Host Process for Windows Services</description>
<requestedExecutionLevel
Software\Microsoft\Windows NT\CurrentVersion\Svchost
Software\Microsoft\Windows NT\CurrentVersion\MgdSvchost
\PIPE\
Host Process for Windows Services
6.1.7600.16385 (win7_rtm.090713-1255)
svchost.exe
Windows
Operating System
6.1.7600.16385
%original file name%.exe_3376:
`.rsrc
ServerKeyloggerU
789:;<&'()* ,-./12345
%SERVER%
URLMON.DLL
shell32.dll
hXXp://
advapi32.dll
kernel32.dll
mpr.dll
version.dll
comctl32.dll
gdi32.dll
opengl32.dll
user32.dll
wintrust.dll
msimg32.dll
juXqhu2.iu
KWindows
TServerKeylogger
GetWindowsDirectoryW
RegOpenKeyExA
RegCloseKey
RegOpenKeyExW
RegCreateKeyW
FindExecutableW
ShellExecuteW
SHDeleteKeyW
URLDownloadToCacheFileW
UnhookWindowsHookEx
SetWindowsHookExW
MapVirtualKeyW
GetKeyboardLayout
GetKeyState
GetKeyboardType
GetKeyboardState
FtpPutFileW
FtpSetCurrentDirectoryW
.idata
.rdata
P.reloc
P.rsrc
URLD7
KERNEL32.DLL
ntdll.dll
oleaut32.dll
shlwapi.dll
wininet.dll
x.html
HKEY_CLASSES_ROOT
HKEY_CURRENT_USER
HKEY_LOCAL_MACHINE
HKEY_USERS
HKEY_CURRENT_CONFIG
[Execute]
KeyDelBackspace
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
.html
XtremeKeylogger
Software\Microsoft\Windows\CurrentVersion\Run
.functions
icon=shell32.dll,4
shellexecute=
autorun.inf
\Microsoft\Windows
\Microsoft\Windows\
ÞFAULTBROWSER%
svchost.exe
lendahacker.ddns.net
explorer.exe
%svchost%
W{3246PC05-8G4Q-7QUE-87CQ-LCVM52EQ0R1X}HKCU\Software\Microsoft\Windows\CurrentVersion\Run
2.8.1
PTF.ftpserver.com
ftpuser
c:\%original file name%.exe
svchost.exe_3132_rwx_10000000_0004D000:
`.rsrc
ServerKeyloggerU
789:;<&'()* ,-./12345
%SERVER%
URLMON.DLL
shell32.dll
hXXp://
advapi32.dll
kernel32.dll
mpr.dll
version.dll
comctl32.dll
gdi32.dll
opengl32.dll
user32.dll
wintrust.dll
msimg32.dll
juXqhu2.iu
KWindows
TServerKeylogger
GetWindowsDirectoryW
RegOpenKeyExA
RegCloseKey
RegOpenKeyExW
RegCreateKeyW
FindExecutableW
ShellExecuteW
SHDeleteKeyW
URLDownloadToCacheFileW
UnhookWindowsHookEx
SetWindowsHookExW
MapVirtualKeyW
GetKeyboardLayout
GetKeyState
GetKeyboardType
GetKeyboardState
FtpPutFileW
FtpSetCurrentDirectoryW
.idata
.rdata
P.reloc
P.rsrc
URLD7
KERNEL32.DLL
ntdll.dll
oleaut32.dll
shlwapi.dll
wininet.dll
x.html
HKEY_CLASSES_ROOT
HKEY_CURRENT_USER
HKEY_LOCAL_MACHINE
HKEY_USERS
HKEY_CURRENT_CONFIG
[Execute]
KeyDelBackspace
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
.html
XtremeKeylogger
Software\Microsoft\Windows\CurrentVersion\Run
.functions
icon=shell32.dll,4
shellexecute=
autorun.inf
\Microsoft\Windows
\Microsoft\Windows\
ÞFAULTBROWSER%
svchost.exe
lendahacker.ddns.net
explorer.exe
%svchost%
W{3246PC05-8G4Q-7QUE-87CQ-LCVM52EQ0R1X}HKCU\Software\Microsoft\Windows\CurrentVersion\Run
2.8.1
PTF.ftpserver.com
ftpuser
%original file name%.exe_3376_rwx_10000000_0004D000:
`.rsrc
ServerKeyloggerU
789:;<&'()* ,-./12345
%SERVER%
URLMON.DLL
shell32.dll
hXXp://
advapi32.dll
kernel32.dll
mpr.dll
version.dll
comctl32.dll
gdi32.dll
opengl32.dll
user32.dll
wintrust.dll
msimg32.dll
juXqhu2.iu
KWindows
TServerKeylogger
GetWindowsDirectoryW
RegOpenKeyExA
RegCloseKey
RegOpenKeyExW
RegCreateKeyW
FindExecutableW
ShellExecuteW
SHDeleteKeyW
URLDownloadToCacheFileW
UnhookWindowsHookEx
SetWindowsHookExW
MapVirtualKeyW
GetKeyboardLayout
GetKeyState
GetKeyboardType
GetKeyboardState
FtpPutFileW
FtpSetCurrentDirectoryW
.idata
.rdata
P.reloc
P.rsrc
URLD7
KERNEL32.DLL
ntdll.dll
oleaut32.dll
shlwapi.dll
wininet.dll
x.html
HKEY_CLASSES_ROOT
HKEY_CURRENT_USER
HKEY_LOCAL_MACHINE
HKEY_USERS
HKEY_CURRENT_CONFIG
[Execute]
KeyDelBackspace
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
.html
XtremeKeylogger
Software\Microsoft\Windows\CurrentVersion\Run
.functions
icon=shell32.dll,4
shellexecute=
autorun.inf
\Microsoft\Windows
\Microsoft\Windows\
ÞFAULTBROWSER%
svchost.exe
lendahacker.ddns.net
explorer.exe
%svchost%
W{3246PC05-8G4Q-7QUE-87CQ-LCVM52EQ0R1X}HKCU\Software\Microsoft\Windows\CurrentVersion\Run
2.8.1
PTF.ftpserver.com
ftpuser
c:\%original file name%.exe
Remove it with Ad-Aware
- Click (here) to download and install Ad-Aware Free Antivirus.
- Update the definition files.
- Run a full scan of your computer.
Manual removal*
- Terminate malicious process(es) (How to End a Process With the Task Manager):No processes have been created.
- Delete the original Trojan file.
- Delete or disinfect the following files created/modified by the Trojan:
C:\Users\"%CurrentUserName%"\AppData\Roaming\Microsoft\Windows\mPKFhSbun2flJRkKlV.dat (320 bytes)
C:\Windows\System32\Win32\explorer.exe (4545 bytes) - Delete the following value(s) in the autorun key (How to Work with System Registry):
[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"Sonido" = "C:\Windows\system32\Win32\explorer.exe"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"google" = "C:\Windows\system32\Win32\explorer.exe"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"Drivers" = "C:\Windows\system32\Win32\explorer.exe" - Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
- Find and delete all copies of the worm's file together with "autorun.inf" scripts on removable drives.
- Reboot the computer.
*Manual removal may cause unexpected system behaviour and should be performed at your own risk.
