1. Symantec/
  2. Security Response/
  3. W32.Induc.A


Risk Level 1: Very Low

August 18, 2009
August 19, 2009 3:24:54 AM
Also Known As:
W32/Induc-A [Sophos], W32/Induc [McAfee], PE_INDUC.A [Trend], W32/Induc-B [Sophos], W32/Induc.A [F-Secure]
Infection Length:
Systems Affected:
This threat attempts to infect Delphi files during the compilation process. It does this by placing an infection routine in the following file:
[DELPHI INSTALLATION FOLDER]\source\rtl\sys\SysConsts.dcu

Any file that is subsequently compiled with Delphi will have the viral code included in it.

The threat copies the file [DELPHI INSTALLATION FOLDER]\source\rtl\sys\SysConsts.dcu to
[DELPHI INSTALLATION FOLDER]\source\rtl\sys\SysConst.bak.

The threat temporarily creates the file [DELPHI INSTALLATION FOLDER]\source\rtl\sys\SysConsts.pas, which contains the infection routine. This is then compiled into the following file:
[DELPHI INSTALLATION FOLDER]\source\rtl\sys\SysConsts.dcu

  • Versions 4, 5, 6, or 7 of the Delphi development environment must be installed on the computer for this virus to run.
  • The infected files do not perform any malicious actions if Delphi is not installed.
Writeup By: Liam O Murchu
Summary| Technical Details| Removal

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