Discovered an issue with Sentry debugging where a lengthy string is being returned as undefined

We are currently in the process of developing an Angular 1.x application that utilizes Bootstrap components. Recently, we integrated Sentry debugging into our site and encountered the following error:

'PAPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGXXPADDINGPADDINGX' is undefined

browser = Internet Explorer 11.0
device = Other
level = error
logger = javascript
os = Windows 8.1

User Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; .NET4.0E; .NET4.0C; .NET CLR 3.5.30729; .NET CLR 2.0.50727; .NET CLR 3.0.30729; InfoPath.3; MDDCJS; rv:11.0) like Gecko

I came across a couple of mentions on Twitter regarding this issue but couldn't find any other information. Has anyone encountered this problem before? Any suggestions on how to resolve it?

Answer №1

It appears that a malicious software is at work, primarily targeting Windows operating systems. This can be inferred from the question, comments, and online sources which all point to instances on Windows platforms. According to some services specializing in tracking malicious activities (refer to the links below), the malware has a pattern of writing/ending files with repeated “PADDINGPADDINGXX” strings.

You can search for more information in the extracted strings section on the following websites:

Answer №2

This response contains a variety of resources aimed at shedding light on the issue at hand. It is an accumulation of links that may assist in understanding the situation better. Feel free to enhance the content further!

  • Analysis of malware sample rtfn.exe
  • Visual Studio error :: Linked to a problem caused by the one-click Amazon toolbar
  • Large application size
  • Tips for releasing a game on various platforms :: Includes advice on reducing executable size
  • Resource extraction using DLLs
  • Discussion on "PADDINGXX" added to executables
  • Intriguing IRC log :: Mentions a block of "PADDINGXXPADDINGXXPADDINGXX"

All this information points towards a possible scenario where memory is allocated but not fully utilized, possibly connected to spaghetti code in your case of IE.

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