Malware – Strange PC Behavior What should I do? (possibly urgent)

After installing the app (Could not be related, but could also be related) and running for the first time, there was a file called "DESKTAAAAAAAA" on my desktop for a few short moments. AAA ", it had an indefinite amount of" A "in capital letters in the name. I did not manage to check the contents of the file because it disappeared after a few seconds.

I did not pay much attention to the strange event. About 5 minutes later, Windows accidentally initiated a shutdown (which I could stop in time), without me initiating a shutdown.

I am using Windows 7.

Is there a good chance I got infected? Are there any other possible explanations or should I immediately assume that I have found malware on my device?

I should note that I never had to do a Windows Shutdown without chance, without doing anything.

I would really appreciate any help I can get. Where can I first check by which process the shutdown was triggered? I'm worried about shutting down my PC until I can make sure it's either clean or fixed, because it's a cause of malware.

Update – Updated to 5.1 or possibly 5.0.3 – Wp_check_php_version error received

Only updated to 5.1 as desired.

WordPress has returned this confirmation screen. It looks a bit confused.

Update confirmation.

It's still a challenge for me to upgrade to 5.1, although I've just done that. It is welcome to 5.0.3 (the previous version), but says that you have successfully upgraded to 5.1 in the following test.

I suspect it's because of this mistake

Fatal error: Error not found: call undefined function wp_check_php_version ()
in /var/www/vhosts/.../httpdocs/wp-admin/about.php:59
Stack Trace: # 0 {main} is thrown in /var/www/vhosts/.../httpdocs/wp-admin/about.php
in line 59

However, I would be happy to receive a confirmation and a possible "simple" solution.

Reference requirement: Introduction to Finsler manifolds from the point of view of metric geometry (possibly from the Busemann approach)

I have read about geometry in metric spaces from different books. Two of them are: (1) A course in metric geometry by Y. Burago, D. Burago and S. Ivanov; and 2) Metric spaces with non-positive curvature by M. Bridson and A. Häfliger. Both develop the Alexandrov approach to curvature, which uses comparison triangles with constant curvature model spaces.

For a normalized room $ X $the following statements are equivalent:

  1. $ X $ has curvature $ leq kappa $ in Alexandrov's sense of a real number $ kappa $,
  2. $ X $ has curvature $ leq 0 $ in the sense of Alexandrov.
  3. The norm $ X $ is induced by an internal product.

It seems to me that Alexandrov's approach in the normed case is not very informative. On the other hand, a geodesic space has a non-positive curvature in the sense of Busemann, if its metric is convex. This is generally a weaker idea than Alexandrov's, and in the normalized case, the following statements are equivalent:

  1. $ X $ has a not positive curvature in the sense of Busemann.
  2. $ X $ is clearly geodetic, ie each pair of points is connected by a unique geodetic (the linear segment between them).
  3. $ X $ is strictly convex, that is the ball in $ X $ is strictly convex, which means different vectors for each pair $ v $ and $ w $ Norm we have one $ tv + (1-t) w $ has less than $ 1 $ for each $ t $ in the (0.1) $,

It seems to me that this weaker notion is the appropriate term for a non-positive curvature in the normed case, and I think so too for Finsler manifolds. I have never studied Finsler geometry before, but I am very interested in studying metric geometry with this approach. And I do not know where to start.

My question is: What is a good introductory book on Finsler manifolds from the perspective of metric geometry? What is a good introductory book to the Busemann approach? If no introductory book were available, a reference to an advanced book would be very welcome, along with pointers to the required background.

Thank you in advance!

Possibly compatible "structure" in the Lie algebra associated with a Lie group in relation to the group structure

Let's use an example to simplify matters.
Consider $ GL_r ( mathbb C) $ as a Lie group with associated Lie algebra $ M_r ( mathbb C) $Then there is a canonical so-called exponential map:
$$ exp: M_r ( mathbb C) through GL_r ( mathbb C). $$
My question is that there are any "structures" $ M_r ( mathbb C) $ that is compatible with the group structure and the exponential map?
Exactly, for $ M_1 mapsto g_1 = exp (M_1) $ and $ M_2 mapsto g_2 = exp (M_2) $, what are the possible "elements" $ M in M_r ( mathbb C) $ With $ M mapsto g_1g_2 = exp (M) $?
How does it work? $ M $ in relation to $ M_1 $ and $ M_2 $?
What is the induced relation to eigenvalues?

apt – How do I resolve a nvidia / mesa conflict – possibly by enforcing the installation without overwriting?

It seems like my NVIDIA drivers are using Mesa (I think). This time the symptom is a little different.

$ sudo apt --fix-broken autoremove
Read package lists ... Done
Create dependency tree
Status information is read ... Done
Correct dependencies ... Done
The following additional packages will be installed:
The following packages are REMOVED:
libllvm6.0: i386 libnvidia-container-tools libnvidia-container1 nvidia-container-runtime nvidia-container-runtime-hook x11proto-dri2-dev x11proto-gl-dev
The following packages are being updated:
1 updated, 0 reinstalled, 7 removed and 4 not updated.
268 not completely installed or removed.
Need 0 B / 134 kB archives.
After this process, 76.2 MB of space will be released.
Would you like to continue? [Y/n] Y
(Reading the database ... 419564 Files and directories are currently installed.)
Preparation for unpacking ... / libglx-mesa0_18.2.2-0ubuntu1 ~ 18.04.1_amd64.deb ...
Unpack libglx-mesa0: amd64 (18.2.2-0ubuntu1 ~ 18.04.1) via (18.0.5-0ubuntu0 ~ 18.04.1) ...
dpkg: Error Handling Archive /var/cache/apt/archives/libglx-mesa0_18.2.2-0ubuntu1~18.04.1_amd64.deb (--unpack):
Try & # 39; /usr/lib/x86_64-linux-gnu/' to overwrite, which is also in the package nvidia-396 396.44-0ubuntu1
There were errors during processing:

I think I want to install this package without overwriting the files. Is there a way to force this? Are there other possible solutions?

dnd 5e – Can chain lightning (and possibly magic with similar wording) target worn or worn equipment?

chain lightning can target objects and does not indicate that the object must be unattended; Magic like fireball or lightning do. Does that mean that the secondary targets can be objects carried by the original creature? Can the original target be an object carried or carried by a creature? What about any combination of these?

You create a flash aimed at a target of your choice that you can see in range. Three bolts then jump from that target to up to three other targets, each of which must be within 30 feet of the first target. A target can be a creature or an object [no specification unattended or otherwise] and can only be controlled by one of the screws.

A goal must perform a skill roll. The target suffers 10d8 lightning damage on an unsuccessful backup or half that on a successful one. (PHB p. 221, emphasis of mine.)

Treating up to three worn or worn items with 10d8 damage after zapping the creature seems like a really effective way to use this spell. It would probably destroy things your enemy should not use and do him good damage. This potential use of the spell, its expected damage, and the comparatively low HP values ​​suggested in the DMG may lead to a potentially quite electrifying attack.

Relatives, although I could not find an answer here.

How does the chain lightning spell work?

This accepted answer deals with areas of impact, though I think chain lightning is different enough to justify my question.

What is suitable for the goal of a spell?

Why is my site not indexed by Google?

There are several things that you may do wrong if your site is not indexed by Google. Here are the main reasons why you do not get as much organic traffic from search engines as your website deserves.

Google still has not found your website

A new website generally faces this problem. It's best to give Google a few days to search and browse your site. However, if your site is not indexed after a few days, make sure your Sitemap is uploaded correctly and works properly. You can submit your sitemap through Google Webmaster Tools.

Your website does not have information that users are looking for

When you update blogs for your website, it's a good idea to create topics that users are looking for. This is likely with the help of keyword research. Search engine optimization services can help you understand what users are looking for, and then create content that makes your site more visible.

Your website has duplicate content

If your website has too much duplicate content, search engines are made more difficult by not indexing your website. If multiple URLs access the same content, a duplicate problem will be generated. This is the main reason why your website may not be indexed.

The Robots.txt file prevents us from crawling your site

If the robots.txt file is not set up correctly, you can inadvertently tell search engines that your site is not being searched. With your SEO services, you can use Webmaster tools efficiently to potentially make them visible in the index of the search engine.

Your website has thinning errors

If search engines can not search some of your pages, they can not be crawled. It's dangerous to ensure that all your web pages are easily crawled by search engines, so your site can be easily indexed. SEO services webmaster tools provide plenty of ways to make sure that there are no crawling issues.

Loading your website takes a long time

A slow loading page is not a good indication. Search engines do not care about websites that take forever to load. If Google is trying to crawl your site and run meetings for endless load times, your site will most likely not be indexed at all.

These are the most common reasons why the influence of your website is not indexed. Search engine optimization services allow you to authorize your site and make it easily searchable for Google and other major search engines.


c ++ – Large input delay, although the frame rate is stable – possibly in the context of the DirectX Tool Kit?

I'm just learning how to use the DirectX 11 API, and I came across the following problem:
Although my render function runs quite fast at about 150 frames per second (considering how little geometry is rendered), mouse and keyboard input is massively delayed. Sometimes the "game" reacts a few seconds too late or does not react at all; Looking around is a pain.
If I increase the frame rate further to about 400 (by reducing the rendering resolution / rendering of fewer objects), the effect disappears and every keystroke is accurately recognized.

My update () function (see code below) is called by the StepTimer class of the DirectX Tool Kit from the main message loop. I tried both the fixed and the variable time step mode.

Main loop that calls update () and render ()

while (msg.message! = WM_QUIT)
if (PeekMessage (& msg, 0, 0, 0, PM_REMOVE))
TranslateMessage (& msg);
DispatchMessage (& msg);

static DX :: StepTimer stepTimer;
stepTimer.Tick ([&]() {update (stepTimer); });

The update () function:

void update (DX :: StepTimer const & timer)
static keyboard :: KeyboardStateTracker keyboardTracker;
static mouse :: ButtonStateTracker mouseTracker;
Keyboard :: State keyboardState = keyboard-> GetState ();
Mouse :: State mouseState = mouse-> GetState ();
keyboardTracker.Update (keyboardState);
mouseTracker.Update (mouseState);
fps = timer.GetFramesPerSecond ();

if (keyboardState.Escape) PostQuitMessage (0);

static levitation = 0,0f;
static float movement = 0,0f;

if (mouseState.positionMode == Mouse :: MODE_RELATIVE)
pitch = std :: max (std :: min (pitch-float (mouseState.y) * 0.001f, XM_PI / 2.0f-0.01f), -XM_PI /2.0f + 0.01f);
yaw - = float (mouseState.x) * 0,001f;
if (greed < -XM_PI) yaw += XM_PI * 2.0f;
        if (yaw > XM_PI) yaw - = XM_PI * 2.0f;
if (mouseTracker.leftButton == Mouse :: ButtonStateTracker :: RELEASED) mouse-> SetMode (mouseState.positionMode == Mouse :: MODE_ABSOLUTE? Mouse :: MODE_RELATIVE: Mouse :: MODE_ABSOLUTE);

Vector3 cameraDir (-sin (yaw) * cos (pitch), sin (pitch), cos (yaw) * cos (pitch));

Vector3 motionVec = {0,0f, 0,0f, 0,0f};
Swimming speed = 4.2f;
if (keyboardState.W || keyboardState.Up)
motionVec.x + = cameraDir.x;
motionVec.z + = cameraDir.z;
if (keyboardState.S || keyboardState.Down)
motionVec.x - = cameraDir.x;
motionVec.z - = cameraDir.z;
if (keyboardState.A || keyboardState.Left)
motionVec.x - = cameraDir.z;
motionVec.z + = cameraDir.x;
if (keyboardState.D || keyboardState.Right)
motionVec.x + = cameraDir.z;
motionVec.z - = cameraDir.x;
if (keyboardState.Space || keyboardState.PageUp)
motionVec.y + = 1.0f;
if (keyboardState.LeftShift || keyboardState.PageDown)
motionVec.y - = 1,0f;
motionVec * = speed;

static Vector3 cameraPos = {0.0f, 2.0f, 0.0f};
if (keyboardState.R)
cameraPos = {0,0f, 2,0f, 0,0f};
Pitch = 0.0f;
Yaw = 0.0f;
cameraPos + = motionVec * float (timer.GetElapsedSeconds ());
matrixCamera = XMMatrixLookToLH (cameraPos.XMVECTOR (), cameraDir.XMVECTOR (), {0.0f, 1.0f, 0.0f});

Is there a hint you can give me? Or could this even be a mistake in the StepTimer class?

Network – Google Chrome Linux (google-chrome-stable) with Activity of Unknown Device (possibly Malware? – deleting the profile did not solve the problem)

Hello to the support forums for Stack Overflow Information Security!

I recently noticed a strange behavior with me Google Chrome browser With GMail, where suddenly a connected appeared Unknown device, with a dual port and the same IP address as mine, Look at the GMail history of accessesand do not know where the source of the problem lies.

Illustration of the problem (Location in Portuguese):

Unknown device connected to the same IP address

I already deleted the profile, Follow the instructions below in the Ask Ubuntu section:

* ( Delete all Chrome private user data from the command line – Ask Ubuntu )

Run the default Chrome configuration

    rm -rf ~ / .config / google-chrome / Default /


rm -rf ~ / .cache / google-chrome

and the strangely described problem has not disappeared today.

This topic also does not help to solve the problem:

* ( Security – Remove Unknown Device Access in Account Activity – Web Applications Stack Exchange )

Maybe it's one viruse/Malware on my Debian? I will try to scan my computer, even on the computer Debian 7 partition With ESET SysRescue:

to know if I can detect an infection, something Prague is hidden in my system. I think this symptom is unusual and it's the first time I've seen this behavior on Linux.

Could someone help me investigate the problem? This may not be related to malware but only to network issues. All I have to do is leave a USB flash drive unoccupied to create a bootable AV-USB key to scan my computer, including bootable computers Kaspersky Rescue Disk or the ESET SysRescue Linux-based security distributions (the best vaccines on the market, after all my searches).

Obs .: Maybe this is a prank from my older brother, who uses Ubuntu to access the Debian partition and infects it with one virus / Malware, Or is it the result of a hidden extension infection in Google Chrome that was acquired while browsing malicious websites? I have not been able to find a guide with steps and a list of likely related causes for resolving the case.

Wait for a return as soon as possible.

Many Thanks.


Is this possibly a damage to the sensor?

1st picture with spots

2nd picture with spots

I bought this Canon 20D a few years ago on Ebay, so I do not know their story. I know that I have not touched the sensor until today. I recently started using a 100 mm macro lens (these photos were taken 1/250 sec. On F / 22) and then I saw "dust spots". I have used a dust blower to remove the "dust" unsuccessfully. Today I used cleaning sticks with Eclipse cleaning fluid and the stains did not improve. Visually with magnification / light I can clearly see scratches on the sensor, but I do not see any dust. Is that possible, it's not dust, but some other kind of damage?