Summary
Ivana is a Word macro virus. It consists of several encrypted macros: Ivana, EditUndo, AutoClose, Underline, ToolsMacro and FileTemplates.
The macros 'Ivana' is used by the virus for previous infection check and has the following text strings:
' Dedicated to Ivana, the only one ' [by [utik]
Removal
Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it.
A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also:
Check for the latest database updates
First, check if your F-Secure security program is using the latest updates, then try scanning the file again.
Submit a sample
After checking, if you still believe the file is incorrectly detected, you can submit a sample of it for re-analysis.
Note: If the file was moved to quarantine, you need to collect the file from quarantine before you can submit it.
Exclude a file from further scanning
If you are certain that the file is safe and want to continue using it, you can exclude it from further scanning by the F-Secure security product.
Note: You need administrative rights to change the settings.
Technical Details
A Word document is infected by the virus on closing. First, the virus disables the dialog asking to confirm saving of modified NORMAL.DOT template. Then the 'AutoClose' macros performs 'Ivana' macros search and infects NORMAL.DOT if it was not previously infected. After that the virus infects the current document (if it was not previously infected) and saves it to disk.
The Ivana virus has a sequence of payloads. On Sundays the virus removes formatting bar from the screen. On Mondays it disables vertical scroll bar setting in Tools\Options\View setup which result in vertical scroll bar disappearing from the document window.
On 13th day of every month the virus inserts 10 empty lines and the following text to the end of the infected document:
'Na kraju, samo jos da kazem: volim te, Ivana [by utik] 'And finally, I would like to say: I love you, Ivana [by utik]
On 4th of July the virus performs the nastiest trick. It adds the word 'Ivana' to the end of the document, sets the document password to 'Ivana' and saves the document to disk. The document becomes inaccessible for the user who doesn't know the password.
The Ivana virus disables undo operations during 15 seconds of each minute. The virus also disables 'Tools\Macro' submenu and document format selection in 'Save As' dialog, so that the infected file could be saved only in *.DOT format. And finally the virus changes the function of 'Underline' macros - instead of changing font properties to 'underlined' the modified macros changes them to 'bold'.
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