[Soot-list] Modifying initial values fields of method.

Marc Miltenberger Marc.Miltenberger at cased.de
Mon Feb 16 16:29:54 EST 2015


The method is called <clinit> and has the subsignature
void <clinit>()

Am 16.02.2015 um 21:56 schrieb Roman Petriev:
> Well ... How can I get access to clinit with soot? BodyTransformer
> couldn't find this method. 
> 
> 2015-02-16 21:58 GMT+03:00 Marc-André Laverdière
> <marc-andre.laverdiere-papineau at polymtl.ca
> <mailto:marc-andre.laverdiere-papineau at polymtl.ca>>:
> 
>     If the field is static, then it will be in clinit...
> 
>     Marc-André Laverdière-Papineau
>     Doctorant - PhD Candidate
> 
>     On 16/02/15 01:25 PM, Roman Petriev wrote:
>     > Unfortunately, it didn't help :( ....
>     >
>     > Simplest <init> contains 3 items, e.g.:
>     >
>     > r0 := @this: decomp.Decomp
>     > specialinvoke r0.<java.lang.Object: void <init>()>()
>     > return
>     >
>     > Decomp class contains 2 constants.
>     >
>     > Do you have any ideas else?
>     >
>     > P.s. javap:
>     >
>     >    private static final java.lang.String FUUU;
>     >      Signature: Ljava/lang/String;
>     >      flags: ACC_PRIVATE, ACC_STATIC, ACC_FINAL
>     >
>     >      ConstantValue: String fdgsfdhsrthd
>     >
>     >
>     >    private static final java.lang.String AAAA;
>     >      Signature: Ljava/lang/String;
>     >      flags: ACC_PRIVATE, ACC_STATIC, ACC_FINAL
>     >
>     >      ConstantValue: String olololo
>     >
>     > Probably, constants were initialized somewhere else ...
>     >
>     >
>     > 2015-02-16 14:22 GMT+03:00 Bodden, Eric <eric.bodden at sit.fraunhofer.de <mailto:eric.bodden at sit.fraunhofer.de>
>     > <mailto:eric.bodden at sit.fraunhofer.de
>     <mailto:eric.bodden at sit.fraunhofer.de>>>:
>     >
>     >     Hi Roman.
>     >
>     >     You will find the appropriate assignment within the body of the
>     >     method <init> within SomeClass. You need to modify the assignment there.
>     >
>     >     Hope this helps,
>     >     Eric
>     >
>     >      > On 16.02.2015, at 11:15, Roman Petriev <vvpiroman at gmail.com <mailto:vvpiroman at gmail.com>
>     >     <mailto:vvpiroman at gmail.com <mailto:vvpiroman at gmail.com>>> wrote:
>     >      >
>     >      > I do body transformation (Jimple) for JBCO, and I need to do this
>     >     for code obfuscation.
>     >      >
>     >      > 2015-02-16 13:10 GMT+03:00 Roman Petriev <vvpiroman at gmail.com <mailto:vvpiroman at gmail.com>
>     >     <mailto:vvpiroman at gmail.com <mailto:vvpiroman at gmail.com>>>:
>     >      > Ok.
>     >      >
>     >      > E.g.:
>     >      >
>     >      > public class SomeClass{
>     >      >
>     >      >     //I want to get/set value of this constant.
>     >      >     private final String SOME_PARAMETER = "value";
>     >      >
>     >      >     public static void main(String[] args) {
>     >      >
>     >      >     //................
>     >      >
>     >      >     }
>     >      > }
>     >      >
>     >      > It's possible?
>     >      >
>     >      >
>     >      > 2015-02-16 9:26 GMT+03:00 Bodden, Eric
>     >     <eric.bodden at sit.fraunhofer.de
>     <mailto:eric.bodden at sit.fraunhofer.de>
>     <mailto:eric.bodden at sit.fraunhofer.de
>     <mailto:eric.bodden at sit.fraunhofer.de>>>:
>     >      > Hi Roman.
>     >      >
>     >      > If you describe your problem in more detail then there is a
>     >     better chance that people will be able to help you out.
>     >      >
>     >      > Best wishes,
>     >      > Eric Bodden
>     >      >
>     >      > > On 15.02.2015, at 22:22, Roman Petriev <vvpiroman at gmail.com <mailto:vvpiroman at gmail.com>
>     >     <mailto:vvpiroman at gmail.com <mailto:vvpiroman at gmail.com>>> wrote:
>     >      > >
>     >      > > Hi all!
>     >      > >
>     >      > > I want to get/set initial value of method field
>     >     (java.lang.String). How I can do it?
>     >      > >
>     >      > > Best regards,
>     >      > > Roman.
>     >      > >
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>     >      >
>     >      > --
>     >      > Prof. Eric Bodden, Ph.D., http://sse.ec-spride.de/
>     http://bodden.de/
>     >      > Head of Secure Software Engineering at Fraunhofer SIT, TU
>     >     Darmstadt and EC SPRIDE
>     >      > Tel: +49 6151 16-75422    Fax: +49 6151 869-127
>     >      > Room B5.11, Fraunhofer SIT, Rheinstraße 75, 64295 Darmstadt
>     >      >
>     >      >
>     >      >
>     >
>     >     --
>     >     Prof. Eric Bodden, Ph.D., http://sse.ec-spride.de/
>     http://bodden.de/
>     >     Head of Secure Software Engineering at Fraunhofer SIT, TU
>     Darmstadt
>     >     and EC SPRIDE
>     >     Tel: +49 6151 16-75422    Fax: +49 6151 869-127
>     >     Room B5.11, Fraunhofer SIT, Rheinstraße 75, 64295 Darmstadt
>     >
>     >
>     >
>     >
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