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ISTBar

Posted: April 5, 2005

Threat Metric

Ranking: 14,538
Threat Level: 5/10
Infected PCs: 1,091
First Seen: July 24, 2009
Last Seen: September 29, 2023
OS(es) Affected: Windows

ISTBar Screenshot 1ISTBar is a toolbar which can attack any browser on any system. Hackers use ISTBar on users under the guise of popular utilities, games, cracks etc. Trojan.ISTbar is used to promote corrupt content. ISTBar has the ability to prevent deletion unless the user exterminates the associated files and registry values. Do not give ISTBar a chance to wreak havoc on your system. Remove it immediately using a reliable anti-malware program.

Aliases

Generic Trojan [Panda]VB.AIQI [AVG]TR/Agent.676832 [AntiVir]Trojan.Siggen3.36851 [DrWeb]Win32:Malware-gen [Avast]Trojan [K7AntiVirus]Generic.dx!zao [McAfee]Trojan-Downloader.Win32.IstBar.gox [Kaspersky]Win32/IstBar.EB [eTrust-Vet]Virtumonde [Sunbelt]Istbar [Sophos]Trojan-Downloader.Win32.IstBar [Ikarus]Suspicious File [eSafe]TrojWare.Win32.TrojanDownloader.IstBar.~L [Comodo]Trojan.Istbar-187 [ClamAV]
More aliases (40)

Technical Details

File System Modifications

Tutorials: If you wish to learn how to remove malware components manually, you can read the tutorials on how to find malware, kill unwanted processes, remove malicious DLLs and delete other harmful files. Always be sure to back up your PC before making any changes.

The following files were created in the system:



eain09g7.exe File name: eain09g7.exe
Size: 204.28 KB (204288 bytes)
MD5: 07ee4d73ff5f9005fbe4fa0f1d386c97
Detection count: 75
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: December 11, 2009
C:\Program Files\FixAuto\FixAuto.exe File name: FixAuto.exe
Size: 676.83 KB (676832 bytes)
MD5: 7198869224725a95e7d6a43eaf252f51
Detection count: 42
File type: Executable File
Mime Type: unknown/exe
Path: C:\Program Files\FixAuto\FixAuto.exe
Group: Malware file
Last Updated: April 23, 2022
iinstall.exe, istdownload[1].exe File name: iinstall.exe, istdownload[1].exe
Size: 33.28 KB (33280 bytes)
MD5: 54b163ec8495a104a0fe1df16d4698f5
Detection count: 25
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: December 11, 2009
37482CA.dll File name: 37482CA.dll
Size: 434.17 KB (434176 bytes)
MD5: 042265b18033ead00247303305bddfad
Detection count: 12
File type: Dynamic link library
Mime Type: unknown/dll
Group: Malware file
Last Updated: December 11, 2009
istbar_mainstream[1].dll File name: istbar_mainstream[1].dll
Size: 85.5 KB (85504 bytes)
MD5: 66b5b33c5445dd14aea8d33efaa703cd
Detection count: 10
File type: Dynamic link library
Mime Type: unknown/dll
Group: Malware file
Last Updated: December 11, 2009
istdialog.new[1].dll File name: istdialog.new[1].dll
Size: 14.84 KB (14848 bytes)
MD5: f2f074d4cc8b848fd84a5e434d038d8c
Detection count: 1
File type: Dynamic link library
Mime Type: unknown/dll
Group: Malware file
Last Updated: December 11, 2009
%ProgramFiles%\ISTbar\cmctl.dll File name: %ProgramFiles%\ISTbar\cmctl.dll
File type: Dynamic link library
Mime Type: unknown/dll
Group: Malware file
%ProgramFiles%\ISTbar\istbarcm.dll File name: %ProgramFiles%\ISTbar\istbarcm.dll
File type: Dynamic link library
Mime Type: unknown/dll
Group: Malware file
%ProgramFiles%\ISTbar\imagemap_normal.bmp File name: %ProgramFiles%\ISTbar\imagemap_normal.bmp
Mime Type: unknown/bmp
Group: Malware file
%ProgramFiles%\ISTbar\imagemap_over.bmp File name: %ProgramFiles%\ISTbar\imagemap_over.bmp
Mime Type: unknown/bmp
Group: Malware file
%ProgramFiles%\ISTbar\version.txt File name: %ProgramFiles%\ISTbar\version.txt
Mime Type: unknown/txt
Group: Malware file
%ProgramFiles%\ISTbar\xml_istbar.xml File name: %ProgramFiles%\ISTbar\xml_istbar.xml
Mime Type: unknown/xml
Group: Malware file
%ProgramFiles%\IstSvc\istsvc.exe File name: %ProgramFiles%\IstSvc\istsvc.exe
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
%Windir%\[RANDOM FILE NAME].exe File name: %Windir%\[RANDOM FILE NAME].exe
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
%Windir%\Downloaded Program Files\ysbactivex.dll File name: %Windir%\Downloaded Program Files\ysbactivex.dll
File type: Dynamic link library
Mime Type: unknown/dll
Group: Malware file
%Windir%\Downloaded Program Files\istactivex.dll File name: %Windir%\Downloaded Program Files\istactivex.dll
File type: Dynamic link library
Mime Type: unknown/dll
Group: Malware file
%UserProfile%\Favorites\Fun & Games, drops numerous link files in this folder File name: %UserProfile%\Favorites\Fun & Games, drops numerous link files in this folder
Group: Malware file
%UserProfile%\Favorites\Going Places, drops numerous link files in this folder File name: %UserProfile%\Favorites\Going Places, drops numerous link files in this folder
Group: Malware file
%UserProfile%\Favorites\Living, drops numerous link files in this folder File name: %UserProfile%\Favorites\Living, drops numerous link files in this folder
Group: Malware file
%UserProfile%\Favorites\Shop, drops numerous link files in this folder File name: %UserProfile%\Favorites\Shop, drops numerous link files in this folder
Group: Malware file
%UserProfile%\Favorites\Technology, drops numerous link files in this folder File name: %UserProfile%\Favorites\Technology, drops numerous link files in this folder
Group: Malware file

Registry Modifications

The following newly produced Registry Values are:

CLSID{5F1ABCDB-A875-46c1-8345-B72A4567E486}HKEY..\..\{CLSID Path}HKEY_CLASSES_ROOT\CLSID\{018B7EC3-EECA-11D3-8E71-0000E82C6C0D}HKEY_CLASSES_ROOT\CLSID\{386A771C-E96A-421f-8BA7-32F1B706892F}HKEY_CLASSES_ROOT\CLSID\{42F2C9BA-614F-47c0-B3E3-ECFD34EED658}HKEY_CLASSES_ROOT\CLSID\{5F1ABCDB-A875-46c1-8345-B72A4567E486}HKEY_CLASSES_ROOT\CLSID\{771A1334-6B08-4a6b-AEDC-CF994BA2CEBE}HKEY_CLASSES_ROOT\CLSID\{7C559105-9ECF-42b8-B3F7-832E75EDD959}HKEY_CLASSES_ROOT\CLSID\{DC341F1B-EC77-47BE-8F58-96E83861CC5A}HKEY_CLASSES_ROOT\CLSID\{FAA356E4-D317-42A6-AB41-A3021C6E7D52}HKEY_CLASSES_ROOT\Interface\{0985C112-2562-46F2-8DA6-92648BA4630F}HKEY_CLASSES_ROOT\Interface\{0E704BA4-C517-4BE7-A1CD-C3FFDA1E1FFE}HKEY_CLASSES_ROOT\Interface\{7B178417-3CDA-444F-94FF-312C0A3A78A8}HKEY_CLASSES_ROOT\Interface\{7B9A715E-9D87-4C21-BF9E-F914F2FA953F}HKEY_CLASSES_ROOT\Interface\{90CE74CC-788A-4A00-B38D-CBCA08CC9E8F}HKEY_CLASSES_ROOT\Interface\{9388907F-82F5-434D-A941-BB802C6DD7C1}HKEY_CLASSES_ROOT\Interface\{A36A5936-CFD9-4B41-86BD-319A1931887F}HKEY_CLASSES_ROOT\Interface\{BF06DA8E-2BEB-4816-9BBD-F7625246E245}HKEY_CLASSES_ROOT\Interface\{DC065FA6-08F9-4C50-99DC-275D16CFC5BD}HKEY_CLASSES_ROOT\Interface\{EAF2CCEE-21A1-4203-9F36-4929FD104D43}HKEY_CLASSES_ROOT\TypeLib\{67907B3C-A6EF-4A01-99AD-3FCD5F526429}HKEY_CLASSES_ROOT\Typelib\{68BF4626-D66B-4383-A6AF-62E57E9B6CD4}HKEY_CLASSES_ROOT\Typelib\{6D3F5DE4-E980-4407-A10F-9AC771ABAAE6}HKEY_CLASSES_ROOT\TypeLib\{89A10D64-83BF-41A4-86A3-7AAF1F8F3D1B}HKEY_CLASSES_ROOT\TypeLib\{8C752C5E-3C10-4076-AF0A-FFC69FA20D1B}HKEY_CLASSES_ROOT\TypeLib\{CC257918-F435-4A33-8231-2B8195990CCA}HKEY_CLASSES_ROOT\TypeLib\{DB447818-96B4-40DF-8A55-720DA496F514}HKEY_CLASSES_ROOT\TypeLib\{E9A5B71C-093B-4F34-AF07-34FCA89BA0DF}HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Code Store Database \Distribution Units\{42F2C9BA-614F-47C0-B3E3-ECFD34EED658}HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Code Store Database \Distribution Units\{7C559105-9ECF-42B8-B3F7-832E75EDD959}HKEY_CLASSES_ROOT\Component Categories \{00021494-0000-0000-C000-000000000046}HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\CurrentVersion\Explorer \Browser Helper Objects\{A3FDD654-A057-4971-9844-4ED8E67DBBB8}File name without pathPower Scan.lnkHKEY..\..\{Value}HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run = "IST Service" = "%ProgramFiles%\IstSvc\istsvc.exe"HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run = "[RANDOM NAME]" = "%Windir%\[RANDOM FILE NAME].exe"HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Main = "Bandrest" = "Never"HKEY_LOCAL_MACHINE%\SOFTWARE\Microsoft\Internet Explorer\Toolbar = "{FAA356E4-D317-42A6-AB41-A3021C6E7D52}" = ""HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser = "{5F1ABCDB-A875-46C1-8345-B72A4567E486}" = ""HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser = "{FAA356E4-D317-42A6-AB41-A3021C6E7D52}" = ""HKEY..\..\..\..{Subkeys}HKEY_LOCAL_MACHINE\SOFTWARE\ISTbarHKEY_CURRENT_USER\Software\ISTbarHKEY_CURRENT_USER\Software\ISTHKEY_LOCAL_MACHINE\SOFTWARE\ISTsvcHKEY_CLASSES_ROOT\ISTbar.BarObjHKEY_CLASSES_ROOT\Pugi.PugiObj.1HKEY_CLASSES_ROOT\Pugi.PugiObjHKEY_CLASSES_ROOT\TestContentMatchControl1.ContentMatchTagHKEY_CLASSES_ROOT\TestContentMatchControl1.ContentMatchTag.1HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion \Uninstall\ISTbarHKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion \Uninstall\ISTbarISTbarHKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion \Uninstall\ISTsvcHKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion \Internet Settings\ZoneMap\Domains\contentmatch.netHKEY_CLASSES_ROOT\ISTx.InstallerHKEY_CLASSES_ROOT\ISTx.Installer.2HKEY_CLASSES_ROOT\ISTactivex.InstallerHKEY_CLASSES_ROOT\ISTactivex.Installer.1HKEY_CLASSES_ROOT\ISTactivex.Installer.2HKEY_CLASSES_ROOT\YSBactivex.Installer.1HKEY_CLASSES_ROOT\YSBactivex.Installer

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