Trojan.GenericKD.1979310 (BitDefender), PWS:Win32/Zbot.gen!CI (Microsoft), Trojan.Win32.Yakes.hgds (Kaspersky), Trojan.Win32.Generic!BT (VIPRE), Trojan.PWS.Panda.4795 (DrWeb), Trojan.GenericKD.1979310 (B) (Emsisoft), RDN/Generic.bfr!hx (McAfee), Trojan.Asprox.B (Symantec), Trojan.Win32.Inject (Ikarus), Trojan.GenericKD.1979310 (FSecure), Inject2.BEQU (AVG), Win32:Injector-CGI [Trj] (Avast), TROJ_FORUCON.BME (TrendMicro), Trojan.GenericKD.1979310 (AdAware), Trojan-PSW.Win32.Zbot.6.FD, GenericInjector.YR, BackdoorCaphaw_QKKBAL.YR, TrojanPSWZbot.YR (Lavasoft MAS)Behaviour: Trojan-PSW, Trojan, Backdoor
The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.
Summary
MD5: d2c0c288e5b8467a204cc92616f9c696
SHA1: bbbf36260eb00f4596dc0f8a99d7583c15b41303
SHA256: 62593ff93c6228af932b8551e88f2c7699aac06ca4d5db6f602da6ab664586a5
SSDeep: 6144:FGxtqrJXWsml3lbr9GqJ eZjhCIr0QBcb:0xtOJmsdqgGNCI4QO
Size: 205542 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: Premium Installer
Created at: 2014-11-16 20:17:12
Analyzed on: WindowsXPESX SP3 32-bit
Summary: Trojan. A program that appears to do one thing but actually does another (a.k.a. Trojan Horse).
Dynamic Analysis
Payload
No specific payload has been found.
Process activity
The Trojan creates the following process(es):
yqgya.exe:3092
yqgya.exe:3988
%original file name%.exe:2568
%original file name%.exe:3520
The Trojan injects its code into the following process(es):
Explorer.EXE:1948
Mutexes
The following mutexes were created/opened:No objects were found.
File activity
The process %original file name%.exe:3520 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\tmp819af28a.bat (177 bytes)
%Documents and Settings%\%current user%\Application Data\Reyb\yqgya.exe (205 bytes)
Registry activity
The process yqgya.exe:3092 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "EF 5A BD CB 7D C0 8E 3C 99 97 43 0F 8A 5F 81 6C"
[HKLM\SOFTWARE\Microsoft\DirectDraw\MostRecentApplication]
"ID" = "1416161832"
"Name" = "yqgya.exe"
The process yqgya.exe:3988 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "43 90 A2 7D C0 C9 0F 49 3C 06 83 F0 99 CD 71 83"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
The process %original file name%.exe:2568 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "97 9B B5 55 49 1F EE 32 42 17 AB 03 FC E4 AE F9"
[HKLM\SOFTWARE\Microsoft\DirectDraw\MostRecentApplication]
"ID" = "1416161832"
"Name" = "%original file name%.exe"
The process %original file name%.exe:3520 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "24 B4 3E 49 BE 1B 7E 0B EF 8D 37 0B 20 B6 4A 89"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
Dropped PE files
MD5 | File path |
---|---|
16e0b0a44e70efa761ee3da91bff25fd | c:\Documents and Settings\"%CurrentUserName%"\Application Data\Reyb\yqgya.exe |
HOSTS file anomalies
No changes have been detected.
Rootkit activity
The Trojan installs the following user-mode hooks in WININET.dll:
HttpSendRequestExW
HttpSendRequestExA
InternetReadFileExA
HttpSendRequestA
HttpSendRequestW
InternetQueryDataAvailable
InternetCloseHandle
HttpQueryInfoA
InternetReadFile
The Trojan installs the following user-mode hooks in CRYPT32.dll:
PFXImportCertStore
The Trojan installs the following user-mode hooks in USER32.dll:
SetCursorPos
DefMDIChildProcA
DefFrameProcA
DefDlgProcA
GetClipboardData
DefMDIChildProcW
DefFrameProcW
GetUpdateRgn
RegisterClassA
GetDCEx
ReleaseCapture
SetCapture
DefWindowProcA
CallWindowProcA
GetUpdateRect
PeekMessageA
CallWindowProcW
GetMessagePos
GetCursorPos
EndPaint
BeginPaint
DefWindowProcW
RegisterClassExA
GetMessageA
DefDlgProcW
SwitchDesktop
OpenInputDesktop
RegisterClassExW
RegisterClassW
GetCapture
PeekMessageW
GetMessageW
GetWindowDC
TranslateMessage
GetDC
ReleaseDC
The Trojan installs the following user-mode hooks in WS2_32.dll:
WSASend
send
closesocket
The Trojan installs the following user-mode hooks in kernel32.dll:
GetFileAttributesExW
The Trojan installs the following user-mode hooks in ntdll.dll:
LdrLoadDll
NtCreateThread
Propagation
Removals
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*
- Scan a system with an anti-rootkit tool.
- Terminate malicious process(es) (How to End a Process With the Task Manager):
yqgya.exe:3092
yqgya.exe:3988
%original file name%.exe:2568
%original file name%.exe:3520 - Delete the original Trojan file.
- Delete or disinfect the following files created/modified by the Trojan:
%Documents and Settings%\%current user%\Local Settings\Temp\tmp819af28a.bat (177 bytes)
%Documents and Settings%\%current user%\Application Data\Reyb\yqgya.exe (205 bytes) - Reboot the computer.
Static Analysis
VersionInfo
Company Name:
Product Name:
Product Version:
Legal Copyright:
Legal Trademarks:
Original Filename:
Internal Name:
File Version:
File Description:
Comments:
Language: Language Neutral
Company Name: Product Name: Product Version: Legal Copyright: Legal Trademarks: Original Filename: Internal Name: File Version: File Description: Comments: Language: Language Neutral
PE Sections
Name | Virtual Address | Virtual Size | Raw Size | Entropy | Section MD5 |
---|---|---|---|---|---|
.text | 4096 | 67383 | 67584 | 4.61653 | 74bf39798a2c13ec8e8d5560e9446157 |
.rdata | 73728 | 22528 | 22528 | 3.88013 | 0424ab33c34fb712ba50528c092c27bb |
.data | 98304 | 18780 | 7680 | 4.06853 | e3b3000318ab55f2bd728d57b5bb5761 |
.rsrc | 118784 | 105472 | 105472 | 5.53021 | 92484947cbfa47c09a4dc957dd26b215 |
Dropped from:
Downloaded by:
Similar by SSDeep:
Similar by Lavasoft Polymorphic Checker:
Network Activity
URLs
IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)
Traffic
Map
The Trojan connects to the servers at the folowing location(s):
Strings from Dumps
Explorer.EXE_1948_rwx_01100000_00027000:
.text
.text
`.data
`.data
.reloc
.reloc
PR_OpenTCPSocket
PR_OpenTCPSocket
hXXp://VVV.google.com/webhp
hXXp://VVV.google.com/webhp
gdiplus.dll
gdiplus.dll
GdiplusShutdown
GdiplusShutdown
ole32.dll
ole32.dll
gdi32.dll
gdi32.dll
,127!' ./9
,127!' ./9
5/ -?9/#$
5/ -?9/#$
./.-#**:
./.-#**:
6 !26!1'1
6 !26!1'1
7"52),,>
7"52),,>
, >(3=2;
, >(3=2;
&;1"&1!7!1
&;1"&1!7!1
;1 "?&! ?
;1 "?&! ?
c,%udcvpdxv ~iydjGBT\YGmTRL[ZMI_
c,%udcvpdxv ~iydjGBT\YGmTRL[ZMI_
7.>.3; `
7.>.3; `
1:,0/2$7
1:,0/2$7
?$6 39 ~
?$6 39 ~
HTTP/1.1
HTTP/1.1
hXXp://
hXXp://
hXXps://
hXXps://
HTTP/1.
HTTP/1.
userenv.dll
userenv.dll
del "%s"
del "%s"
if exist "%s" goto d
if exist "%s" goto d
del /F "%s"
del /F "%s"
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; SV1)
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; SV1)
urlmon.dll
urlmon.dll
cabinet.dll
cabinet.dll
SSShlD
SSShlD
GetProcessHeap
GetProcessHeap
KERNEL32.dll
KERNEL32.dll
ExitWindowsEx
ExitWindowsEx
OpenWindowStationW
OpenWindowStationW
GetProcessWindowStation
GetProcessWindowStation
CreateWindowStationW
CreateWindowStationW
CloseWindowStation
CloseWindowStation
SetProcessWindowStation
SetProcessWindowStation
GetKeyboardState
GetKeyboardState
MapVirtualKeyW
MapVirtualKeyW
SetKeyboardState
SetKeyboardState
MsgWaitForMultipleObjects
MsgWaitForMultipleObjects
USER32.dll
USER32.dll
RegOpenKeyExW
RegOpenKeyExW
RegEnumKeyExW
RegEnumKeyExW
RegCloseKey
RegCloseKey
RegCreateKeyExW
RegCreateKeyExW
ADVAPI32.dll
ADVAPI32.dll
PathIsURLW
PathIsURLW
UrlUnescapeA
UrlUnescapeA
SHDeleteKeyW
SHDeleteKeyW
SHLWAPI.dll
SHLWAPI.dll
ShellExecuteW
ShellExecuteW
SHELL32.dll
SHELL32.dll
Secur32.dll
Secur32.dll
SetViewportOrgEx
SetViewportOrgEx
GDI32.dll
GDI32.dll
WS2_32.dll
WS2_32.dll
PFXImportCertStore
PFXImportCertStore
CertDeleteCertificateFromStore
CertDeleteCertificateFromStore
CertOpenSystemStoreW
CertOpenSystemStoreW
CertCloseStore
CertCloseStore
CertEnumCertificatesInStore
CertEnumCertificatesInStore
CertDuplicateCertificateContext
CertDuplicateCertificateContext
PFXExportCertStoreEx
PFXExportCertStoreEx
CRYPT32.dll
CRYPT32.dll
HttpSendRequestExA
HttpSendRequestExA
HttpQueryInfoA
HttpQueryInfoA
HttpSendRequestExW
HttpSendRequestExW
HttpSendRequestW
HttpSendRequestW
HttpSendRequestA
HttpSendRequestA
GetUrlCacheEntryInfoW
GetUrlCacheEntryInfoW
HttpAddRequestHeadersW
HttpAddRequestHeadersW
HttpAddRequestHeadersA
HttpAddRequestHeadersA
InternetCrackUrlA
InternetCrackUrlA
HttpOpenRequestA
HttpOpenRequestA
WININET.dll
WININET.dll
OLEAUT32.dll
OLEAUT32.dll
NETAPI32.dll
NETAPI32.dll
>">->3>?>
>">->3>?>
5S5C5N5Z5
5S5C5N5Z5
nspr4.dll
nspr4.dll
cGlobal\XXX
cGlobal\XXX
SysShadow
SysShadow
e.dat
e.dat
kernel32.dll
kernel32.dll
"%s" %s
"%s" %s
/c "%s"
/c "%s"
%sx.%s
%sx.%s
%sx
%sx
%Documents and Settings%\%current user%\Application Data\Leapy\koda.bel
%Documents and Settings%\%current user%\Application Data\Leapy\koda.bel
%Documents and Settings%\%current user%\Application Data\Leapy
%Documents and Settings%\%current user%\Application Data\Leapy
koda.bel
koda.bel
Global\{97680508-2EE3-FEC9-427A-1554D28646F0}
Global\{97680508-2EE3-FEC9-427A-1554D28646F0}
%Documents and Settings%\%current user%\Application Data
%Documents and Settings%\%current user%\Application Data
{0113B72D-9CC6-68B2-427A-1554D28646F0}
{0113B72D-9CC6-68B2-427A-1554D28646F0}