Virus.Win32.Driller or Driller is a per-process memory resident parasitic high-polymorphic Win32 virus.
Driller infects PE EXE files that have .EXE, .SCR, and .CPL filename extensions. When run, the virus infects these files in current Windows and Windows system directories. The virus also stays in the system memory as a component of the infected host program, gains access to KERNEL functions and intercepts 15 of them: file searching, opening, copying, moving functions, etc. When a PE EXE file is accessed by these functions, the virus infects it. As a result, the virus will infect all PE EXE programs that are accessed by the infected host program, and the virus will be active until the moment the host program exits. While infecting a file, the virus encrypts its 8K code and is stored at the end of the file. Then the virus reads 8K of the victim file code, encrypts it and is also saved at the end of the file. That "cave" then is filled with virus polymorphic code that decrypts the main virus code and passes control there.
The virus' polymorphic engine contains bugs and in some cases, the virus cannot decrypt its code, causing a standard Windows message about an error in the application.
On Fridays, and depending on the system date, the virus replaces StartPage for MS Internet Explorer and Netscape Navigator with a reference to the Web site:
The virus contains the "copyright" text:
[Virus TUAREG by The Mental Driller|29A] - This virus has been designed for carrying the TUAREG engine -
Driller is also known as :
- Win32.Driller (Kaspersky Lab)
- Virus: W32/Tuareg (McAfee)
- W32/Tuareg-D (Sophos)
- Heuristic.WinPE-Statistical (Panda)
- W32/Tuareg.K (FPROT)
- Virus:Win32/Tuareg.A.dr (MS(OneCare))
- Win32.Driller (DrWeb)
- Win32/Driller virus (Nod32)
- Win32.Tuareg.Gen (BitDef7)
- Win32:Banof-E [Wrm] (AVAST)
- Virus.Win32.Driller (Ikarus)
- Win32/Driller (AVG)
- WORM/CTX.Dam.1 (AVIRA)
- W95.Drill.14896 (NAV)
- NseCheckFile2() returned 0x00010018 (Norman)
- W32/Tuareg (NAI)
- PE_Generic (TrendMicro)
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SecureList (Kaspersky Labs), Virus.Win32.Driller