MD5: b241ce5de9708e8d6b71ea53e5435fb0
SHA1: 992221212c4819b9eb859a67d266dd8e384f9c84
SHA256: 79d5fc74a2228d162ac4c30ab812c97f8689eb8516b3e0fac56eaf20778d87d3
SSDeep: 49152:Xg12vwGpKp5uvL UdxklSREOodIFLb/w1A/usHmGo6Bq Hzf:g2ny5YdxbaSY1A/usHm76BTHr
Size: 2219015 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: MicrosoftVisualC, NETexecutable, UPolyXv05_v6
Company: PlusHD_i20V30.06
Created at: 2015-05-26 16:49:39
Analyzed on: WindowsXP SP3 32-bit

Summary:

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

Payload

Process activity

The Trojan creates the following process(es):

%original file name%.exe:488

The Trojan injects its code into the following process(es):

Encryptado.exe:1360
svchost.exe:756

Mutexes

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

File activity

The process Encryptado.exe:1360 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

%System%\system32\svchost.exe (2105 bytes)
%Documents and Settings%\%current user%\Application Data\Microsoft\Windows\YP9CHbcYhRCW102.dat (322 bytes)

The process %original file name%.exe:488 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\Encryptado.exe (46772 bytes)

Registry activity

The process Encryptado.exe:1360 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Directory" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5"

[HKLM\SOFTWARE\Microsoft\Active Setup\Installed Components\{30FG16E6-50A8-IW0Q-Y3BW-WG7215M0PW0S}]
"StubPath" = "%System%\system32\svchost.exe restart"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache4"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "3C 00 00 00 1E 00 00 00 01 00 00 00 00 00 00 00"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"

[HKCU\Software\XtremeRAT]
"Mutex" = "YP9CHbcYhRCW102"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cookies" = "%Documents and Settings%\%current user%\Cookies"

[HKLM\SOFTWARE\Microsoft\DirectDraw\MostRecentApplication]
"ID" = "708992537"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache2"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"

[HKLM\SOFTWARE\Microsoft\DirectDraw\MostRecentApplication]
"Name" = "Encryptado.exe"

[HKLM\System\CurrentControlSet\Hardware Profiles\0001\Software\Microsoft\windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CacheLimit" = "65452"

[HKCU\Software\YP9CHbcYhRCW102]
"ServerStarted" = "26/08/2015 11:03:43"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4]
"CacheLimit" = "65452"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CacheLimit" = "65452"

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "34 FF 9F 0C D3 86 CE 9A F0 97 CB 2A F8 DC 47 F2"

[HKCU\Software\YP9CHbcYhRCW102]
"ServerName" = "%System%\system32\svchost.exe"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache1"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CacheLimit" = "65452"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"MigrateProxy" = "1"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache3"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Paths" = "4"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"History" = "%Documents and Settings%\%current user%\Local Settings\History"

The Trojan modifies IE settings for security zones to map all local web-nodes with no dots which do not refer to any zone to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"UNCAsIntranet" = "1"

To automatically run itself each time Windows is booted, the Trojan adds the following link to its file to the system registry autorun key:

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"HKLM" = "%System%\system32\svchost.exe"

The Trojan modifies IE settings for security zones to map all urls to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"IntranetName" = "1"

The Trojan modifies IE settings for security zones to map all web-nodes that bypassing the proxy to the Intranet Zone:

"ProxyBypass" = "1"

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]
"HKCU" = "%System%\system32\svchost.exe"

Proxy settings are disabled:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

The Trojan deletes the following value(s) in system registry:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"AutoConfigURL"
"ProxyServer"
"ProxyOverride"

The process %original file name%.exe:488 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "AD 5E 3C A2 A7 45 A7 14 4B 53 19 60 3C 1C 1B 68"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cookies" = "%Documents and Settings%\%current user%\Cookies"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\ShellNoRoam\MUICache\%Documents and Settings%\%current user%\Local Settings\Temp]
"Encryptado.exe" = "Encryptado"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"

The Trojan modifies IE settings for security zones to map all web-nodes that bypassing the proxy to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"ProxyBypass" = "1"

The Trojan modifies IE settings for security zones to map all local web-nodes with no dots which do not refer to any zone to the Intranet Zone:

"UNCAsIntranet" = "1"

The Trojan modifies IE settings for security zones to map all urls to the Intranet Zone:

"IntranetName" = "1"

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: Microsoft
Product Name: fubhisaubhdfiusbidbsauibdsabidbasibdiasbdiubasbduiasbDasda
Product Version: 1.0.0.0
Legal Copyright: Copyright (c) Microsoft 2015
Legal Trademarks:
Original Filename: fubhisaubhdfiusbidbsauibdsabidbasibdiasbdiubasbduiasbDasda.exe
Internal Name: fubhisaubhdfiusbidbsauibdsabidbasibdiasbdiubasbduiasbDasda.exe
File Version: 1.0.0.0
File Description: fubhisaubhdfiusbidbsauibdsabidbasibdiasbdiubasbduiasbDasda
Comments:
Language: English (United States)

PE Sections

Dropped from:

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):

`.rsrc

.Slc3

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

}%d~\

000]]]%%%0/....LLL(((

Z.rbe

n.lll>

]]%u&p

Hke%x

>ma.ol

E-U.Wk ]s$

)ÿF

.Im{{;

.vvv&

SSSH)aggg

KWindows

TServerKeylogger

GetWindowsDirectoryW

RegOpenKeyExW

RegCreateKeyW

RegCloseKey

RegOpenKeyExA

FindExecutableW

ShellExecuteW

SHDeleteKeyW

URLDownloadToCacheFileW

UnhookWindowsHookEx

SetWindowsHookExW

MapVirtualKeyW

GetKeyboardLayout

GetKeyState

GetKeyboardType

GetKeyboardState

FtpPutFileW

FtpSetCurrentDirectoryW

.idata

.rdata

P.reloc

P.rsrc

,UL.kO

.jDn_I

URLDow

#X{ktop#uDpak

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\

ÞFAULTBROWSER%

svchost.exe

igualaonikki.no-ip.org

%svchost.exe%

{30FG16E6-50A8-IW0Q-Y3BW-WG7215M0PW0S}

HKCU\Software\Microsoft\Windows\CurrentVersion\Run

%svchost%

hXXp://YP9CHbcYhRCW102PERSIST

PTF.ftpserver.com

ftpuser

%Documents and Settings%\%current user%\Local Settings\Temp\Encryptado.exe

Encryptado.exe_1360_rwx_10001000_0009B000:

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

}%d~\

000]]]%%%0/....LLL(((

Z.rbe

n.lll>

]]%u&p

Hke%x

>ma.ol

E-U.Wk ]s$

)ÿF

.Im{{;

.vvv&

SSSH)aggg

KWindows

TServerKeylogger

GetWindowsDirectoryW

RegOpenKeyExW

RegCreateKeyW

RegCloseKey

RegOpenKeyExA

FindExecutableW

ShellExecuteW

SHDeleteKeyW

URLDownloadToCacheFileW

UnhookWindowsHookEx

SetWindowsHookExW

MapVirtualKeyW

GetKeyboardLayout

GetKeyState

GetKeyboardType

GetKeyboardState

FtpPutFileW

FtpSetCurrentDirectoryW

.idata

.rdata

P.reloc

P.rsrc

,UL.kO

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\

ÞFAULTBROWSER%

svchost.exe

igualaonikki.no-ip.org

%svchost.exe%

{30FG16E6-50A8-IW0Q-Y3BW-WG7215M0PW0S}

HKCU\Software\Microsoft\Windows\CurrentVersion\Run

%svchost%

hXXp://YP9CHbcYhRCW102PERSIST

PTF.ftpserver.com

ftpuser

%Documents and Settings%\%current user%\Local Settings\Temp\Encryptado.exe

svchost.exe_756:

.text

`.data

.rsrc

ADVAPI32.dll

KERNEL32.dll

NTDLL.DLL

RPCRT4.dll

NETAPI32.dll

ole32.dll

ntdll.dll

RegCloseKey

RegOpenKeyExW

GetProcessHeap

NtOpenKey

svchost.pdb

\PIPE\

Software\Microsoft\Windows NT\CurrentVersion\Svchost

\Registry\Machine\System\CurrentControlSet\Control\SecurePipeServers\

5.1.2600.5512 (xpsp.080413-2111)

svchost.exe

Windows

Operating System

5.1.2600.5512

svchost.exe_756_rwx_10000000_000C6000:

`.rsrc

.Slc3

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

}%d~\

000]]]%%%0/....LLL(((

Z.rbe

n.lll>

]]%u&p

Hke%x

>ma.ol

E-U.Wk ]s$

)ÿF

.Im{{;

.vvv&

SSSH)aggg

KWindows

TServerKeylogger

GetWindowsDirectoryW

RegOpenKeyExW

RegCreateKeyW

RegCloseKey

RegOpenKeyExA

FindExecutableW

ShellExecuteW

SHDeleteKeyW

URLDownloadToCacheFileW

UnhookWindowsHookEx

SetWindowsHookExW

MapVirtualKeyW

GetKeyboardLayout

GetKeyState

GetKeyboardType

GetKeyboardState

FtpPutFileW

FtpSetCurrentDirectoryW

.idata

.rdata

P.reloc

P.rsrc

,UL.kO

.jDn_I

URLDow

#X{ktop#uDpak

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\

ÞFAULTBROWSER%

svchost.exe

igualaonikki.no-ip.org

%svchost.exe%

{30FG16E6-50A8-IW0Q-Y3BW-WG7215M0PW0S}

HKCU\Software\Microsoft\Windows\CurrentVersion\Run

%svchost%

hXXp://YP9CHbcYhRCW102PERSIST

PTF.ftpserver.com

ftpuser

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):
   

   %original file name%.exe:488
   

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

   %System%\system32\svchost.exe (2105 bytes)
   %Documents and Settings%\%current user%\Application Data\Microsoft\Windows\YP9CHbcYhRCW102.dat (322 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\Encryptado.exe (46772 bytes)

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

   [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   "HKLM" = "%System%\system32\svchost.exe"
   
   [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   "HKCU" = "%System%\system32\svchost.exe"

5. Find and delete all copies of the worm's file together with "autorun.inf" scripts on removable drives.
   
6. Reboot the computer.
   

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